THE NATURE OF SUFISM 5 tion to the forms which they deny because they fail to understand them. Now this role of Sufism in the Islamic world! is indeed like that of the heart in man, for the heart is the vital centre of the organism and also, in its subtle reality, the ‘‘seat” of an essence which transcends all individual form. Because orientalists were anxious to bring every- thing down to the historical level it could hardly be ex- pected that they would explain this double aspect of Sufism otherwise than as the result of influences coming into Islam from outside and, according to their various preoccupations they have indeed attributed the origins of Sufism to Persian, Hindu, Neo-Platonic or Christian sources. But these diverse attributions have ended by cancelling one another, the more so because there is no adequate reason for doubting the historical authenticity of the spiritual “descent’ of the Sufi masters, a descent which can be traced in an unbroken ‘“‘chain® (silsilah) back to the Prophet himself. The decisive argument in favour of the Muhammadan origin of Sufism lies, how- ever, in Sufism itself. If sufic wisdom came from a source outside Islam, those who aspire to that wisdom— which is assuredly neither bookish nor purely mental in its nature—could not rely on the symbolism of the Quran for realising that wisdom ever afresh, whereas in fact 1. Thisrefers to Sufism in itself, not to its initiatic organisations. Human groups may take on more or less contingent functions despite their connection with Sufism; the spmtual elite is hardly to be re\,ogmsed from outside. Again, it is a well- known fact that many of the most eminent defenders of Islamic, orthodoxy, such as ‘Abd al-Qader Jilani, al-Ghazali or the sulmn Salah ad- Din (Saladin), were connected with Sufism. tion ; such movements are not intellectually free in rela-