As soon as I attained to His Unity I became a bird with a
Body of Oneness and wings of Evelastingness, and I continued
Flying in the air of Quality for ten years, until I reached
An atmosphere a million times as large, and flew on, until I
Found myself in the field of Eternity and saw there the Tree
Of Oneness.
–Abu Nasr al-Sarraj
http://www.uga.edu/islam/sufism/sarraj.html
The Kitáb al-luma’ fi’l-Tasawwuf of Abú Nasr ‘abdallah b. ‘Ali al-Sarráj al-Tusi; edited for the first time, with critical notes, abstract of contents, glossary, and indices
