Iqbal was an heir to a very rich literary, mystic, philosophical and religious tradition. He imbibed and assimilated all that was best in the past and present Islamic and Oriental thought and culture. His range of interests covered Religion, Philosophy, Art, Politics, Economics, the revival of Muslim life and universal brotherhood of man. His prose, not only in his national language but also in English, was powerful. His two books in English demonstrate his mastery of English. But poetry was his medium par excellence of expression. Everything he thought and felt, almost involuntarily shaped itself into verse.

Iqbal's Works
His first book Ilm ul Iqtisad/The knowledge of Economics was written in Urdu in 1903. His first poetic work Asrar-i Khudi (1915) was followed by Rumuz-I Bekhudi (1917). Payam-i Mashriq appeared in 1923, Zabur-i Ajam in 1927, Javid Nama in 1932, Pas cheh bayed kard ai Aqwam-i Sharq in 1936, and Armughan-i Hijaz in 1938. All these books were in Persian. The last one, published posthumously is mainly in Persian: only a small portion comprises Urdu poems and ghazals.

His first book of poetry in Urdu, Bang-i Dara (1924) was followed by Bal-i Jibril in 1935 and Zarb-i Kalim in 1936.

Bang-i Dara consist of selected poems belonging to the three preliminary phases of Iqbal's poetic career. Bal-i Jibril is the peak of Iqbal's Urdu poetry. It consists of ghazals, poems, quatrains, epigrams and displays the vision and intellect necessary to foster sincerity and firm belief in the heart of the ummah and turn its members into true believers. Zarb-i Kalim was described by the poet himself "as a declaration of war against the present era". The main subjects of the book are Islam and the Muslims, education and upbringing, woman, literature and fine arts, politics of the East and the West. In Asrar-i Khudi, Iqbal has explained his philosohy of "Self". He proves by various means that the whole universe obeys the will of the "Self". Iqbal condemns self-destruction. For him the aim of life is self-relization and self-knowledge. He charts the stages through which the "Self" has to pass before finally arriving at its point of perfection, enabling the knower of the "Self" to become the viceregent of Allah on earth/Khalifat ullah fi'l ard. In Rumuz-i Bekhudi, Iqbal proves that Islamic way of life is the best code of conduct for a nation's viability. A person must keep his individual characteristics intact but once this is achieved he should sacrifice his personal ambitions for the needs of the nation. Man cannot realize the "Self" out of society. Payam-i Mashriq is an answer to West-Istlicher Divan by Goethe, the famous German peot. Goethe bemoaned that the West had become too materialistic in outlook and expected that the East would provide a message of hope that would resuscitate spiritual values. A hundred years went by and then Iqbal reminded the West of the importance of morality, religion and civilization by underlining the need for cultivating feeling, ardour and dynamism. He explained that life could, never aspire for higher dimensions unless it learnt of the nature of spirituality.

Zabur-i Ajam includes the Mathnavi Gulshan-i Raz-i Jadid and Bandagi Nama. In Gulshan-i Raz-i Jadid, he follows the famous Mathnavi Gulshan-i Raz by Sayyid Mahmud Shabistri. Here like Shabistri, I qbal first poses questions, then answers them with the help of ancient and modern insight and shows how it effects and concerns the world of action. Bandagi Nama is in fact a vigorous campaign against slavery and subjugation. He explains the spirit behind the fine arts of enslaved societies. In Zabur-i Ajam, Iqbal's Persian ghazal is at its best as his Urdu ghazal is in Bal-i Jibril. Here as in other books, Iqbal insists on remembering the past, doing well in the present and preparing for the future. His lesson is that one should be dynamic, full of zest for action and full of love and life. Implicitly, he proves that there is no form of poetry which can equal the ghazal in vigour and liveliness. In Javid Nama, Iqbal follows Ibn-Arabi, Marri and Dante. Iqbal depicts himself as Zinda Rud (a stream, full of life) guided by Rumi the master, through various heavens and spheres and has the honour of approaching Divinity and coming in contact with divine illuminations. Several problems of life are discussed and answers are provided to them. It is an exceedingly enlivening study. His hand falls heavily on the traitors to their nation like Mir Jafar from Bengal and Mir Sadiq from the Deccan, who were instrumental in the defeat and death of Nawab Siraj-ud-Daula of Bengal and Sultan Tipu of Mysore respectively by betraying them for the benefit of the British. Thus, they delivered their country to the shackles of slavery. At the end, by addressing his son Javid, he speaks to the young people at large and provides guidance to the "new generation".

Pas Cheh Bay ed Kard ai Aqwam-i Sharq includes the mathnavi Musafir. Iqbal's Rumi, the master, utters this glad tiding "East awakes from its slumbers" "Khwab-i ghaflat". Inspiring detailed commentary on voluntary poverty and free man, followed by an exposition of the mysteries of Islamic laws and sufic perceptions is given. He laments the dissention among the Indian as well as Muslim nations. Mathnavi Musafir, is an account of a journey to Afghanistan. In the mathnavi the people of the Frontier (Pathans) are counseled to learn the "secret of Islam" and to "build up the self" within themselves.

Armughan-i Hijaz consists of two parts. The first contains quatrains in Persian; the second contains some poems and epigrams in Urdu. The Persian quatrains convey the impression as though the poet is travelling through Hijaz in his imaginatin. Profundity of ideas and intensity of passion are the salient features of these short poems. The Urdu portion of the book contains some categorical criticism of the intellectual movements and social and political revolutions of the modern age.

Iqbal's English Works
Iqbal wrote two books in English. The first being The Development of Metaphysics in Persia in which continuity of Persian thought is discussed and sufism is dealt with in detail. In Iqbal's view true Islamic Sufism awakens the slumbering soul to a higher idea of life.

The second book, The Reconstruction of Religious Thought in Islam, is the collection of Iqbal's six lectures which he delivered at Madras, Hyderabad and Aligarh. These were first published from Lahore in 1930 and then by Oxford University Press in 1934. Some of the main subjects are "Knowledge and Religious Experience," "The Conception of God and the Meaning of Prayer," "The Human Ego," "Predestination and Free Will," "The Spirit of Muslim Culture," "The Principle of Movement in Islam (Ijtihad)." These issues are discussed pithily in a thought provoking manner in the light of Islam and the modern age. These lectures were translated into Urdu by Sayyid Nazir Niazi.

Letters
In addition to these books he wrote hundreds of letters in Urdu and English. Urdu letters have been published in ten different books. He issued statements pertaining to the burning topics of the day relating to various aspects of social, religious, cultural and political problems of India, Europe and the world of Islam. For a few years he served as a Professor of Philosophy and Oriental Learning at the government College, Lahore and the Punjab University Oriental College. Many of his speeches and statements have been compiled and published in book form. Except for the last four years of his life he practised at the Lahore High Court Bar. All his life he was easily accessible to all and sundry and evening sessions at his home were a common feature.

In Spite of his heavy political and social commitments he had time for poetry, a poetry which made philosophy sing. A.K Brohi says:

Dr. Iqbal is undoubtedly a renowned poet-philosopher of Islam and may have in his writings a never failing source of inspiration, delight and aesthetic wonder. He has made signal contribution to our understanding of the Holy Writ of Islam and offered his evaluation of the remarkable example of which the life of the Prophet of Islam (pbuh) has presented to the world at large and the high water-mark of excellence, it provides of how best our earthly lives can be lived here below.

Iqbal The Visionary
Iqbal joined the London branch of the All India Muslim League while he was studying Law and Philosophy in England. It was in London when he had a mystical experience. The ghazal containing those divinations is the only one whose year and month of composition is expressly mentioned. It is March 1907. No other ghazal, before or after it has been given such importance. Some verses of that ghazal are:

At last the silent tongue of Hijaz has
announced to the ardent ear the tiding
That the covenant which had been given to the
desert-dwelles is going to be renewed
vigorously:

The lion who had emerged from the desert and
had toppled the Roman Empire is
As I am told by the angels, about to get up
again (from his slumbers.)

You the dwelles of the West, should know that
the world of God is not a shop (of yours).
Your imagined pure gold is about to lose it
standard value (as fixed by you).

Your civilization will commit suicide with its
own daggers.
A nest built on a frail bough cannot be
durable.

The caravan of feeble ants will take the rose
petal for a boat
And inspite of all blasts of waves, it shall cross
the river.

I will take out may worn-out caravan in the
pitch darkness of night.
My sighs will emit sparks and my breath will
produce flames.

For Iqbal it was a divinely inspired insight. He disclosed this to his listeners in December 1931, when he was invited to Cambridge to address the students. Iqbal was in London, participating in the Second Round Table Conference in 1931. At Cambridge, he referred to what he had proclaimed in 1906:

I would like to offer a few pieces of advice to the youngmen who are at present
studying at Cambridge ......I advise you to guard against atheism and
materialism. The biggest blunder made by Europe was the separation of Church
and State. This deprived their culture of moral soul and diverted it to the atheistic
materialism. I had twenty-five years ago seen through the drawbacks of this
civilization and therefore had made some prophecies. They had been delivered by
my tongue although I did not quite understand them. This happened in 1907.....
After six or seven years, my prophecies came true, word by word. The European
war of 1914 was an outcome of the aforesaid mistakes made by the European
nations in the separation of the Church and the State.

It should be stressed that Iqbal felt he had received a spiritual message in 1907 which even to him was, at that juncture, not clear. Its full import dawned on him later. The verses quoted above show that Iqbal had taken a bold decision about himself as well. Keeping in view that contemporary circumstances, he had decided to give a lead to the Muslim ummah and bring it out of the dark dungeon of slavery to the shining vasts of Independence. This theme was repeated later in poems such as "Abdul Qadir Ke Nam," "Sham-o-Sha'ir," "Javab-i Shikwa," "Khizr-i Rah," "Tulu-e Islam" etc. He never lost heart. His first and foremost concern, naturally, were the Indian Muslims. He was certain that the day of Islamic resurgence was about to dawn and the Muslims of the South Asian subcontinent were destined to play a prominent role in it.

The Holy Prophet has said:

Beware of the foresight of the believer for he sees with Divine Light.