The mysticism of Islam is known as Sufism. "Sufis believe that the world can never remain without a qutb upon whom depends the preservation of the faith and the guidance of human beings. He is nearest to God , the guardian of the faith and receives instructions from Allah directly."
Asceticism is an important part in the origination of gradual development of Sufism. Some say it is the seed or root of Sufism.
Sufism on its theosophical side is mainly a product of Greek speculation.
The seed of Sufism sown in the time of Adam , germed in the time of Nuh , budded in the time of Ibrahim , began to develop in the time of Musa , reached maturity in the time of Christ , produced pure wine in the time of Muhammad .