I began at first to imitate their habits and methods, and spent a few hours in silence every day. Once in a dream I saw a great gathering of prophets, saints, and sages, all clad in their Sufi garments, rejoicing in the Suma or music of the dervishes. I was absorbed into their blissful state of ecstasy, and when I was aroused I still felt the exultation my vision had brought to me. After this I heard continually, waking or sleeping, an unknown voice which cried to me, "Allah ho-Akbar" -- God is great!