I searched for God among the Christians and on the Cross and therein I found Him not.
I went into the ancient temples of idolatry; no trace of Him was there.
I entered the mountain cave of Hira and then went as far as Qandhar but God I found not.
With set purpose I fared to the summit of Mount Caucasus and found there only 'anqa's habitation.
Then I directed my search to the Kaaba, the resort of old and young; God was not there even.
Turning to philosophy I inquired about him from ibn Sina but found Him not within his range.
I fared then to the scene of the Prophet's experience of a great divine manifestation only a "two bow-lengths' distance from him" but God was not there even in that exalted court.
Finally, I looked into my own heart and there I saw Him; He was nowhere else.

Soul receives from soul that knowledge, therefore not by book nor from tongue.
If knowledge of mysteries come after emptiness of mind, that is illumination of heart.

If thou wilt be observant and vigilant, thou wilt see at every moment the response to thy action. Be observant if thou wouldst have a pure heart, for something is born to thee in consequence of every action.