Assalam alaikum,
Kindly permit me to contribute on the topic above on "FANA" or Self-Negation, started by Farrukh. I will want us to look at on this subject from the perspective of that universally acclaimed arif and Sufi Teacher par exellence, Sayyadi al-Junaid al-Baghdadi, may Allah be Merciful to him, who said that "There are 3 stages of fana: the first is transcendence of attributes (sifat), dispositions (akhlaq) and natural desires. You attain to this by carrying out your duties, by striving hard and by opposing the carnal soul (al-nafs) and denying it its desires through imposing on it unpleasant things.
The second stage of FANA is that you relinqish all thought of joy and pleasure that you may get in obeying Allah's Commands. You attain to this stage when you comply to the demands of Allah purely for His Sake.
The third stage of FANA is that you cease to be conscious of your ecstatic experience (of Allah) as a result of overwhelming vision of Allah's witness (Shahid) to you. At this stage you die as well as live, and you live in reality, for you die to yourself and live by Allah. Your personal characteristics (rasm) survive, but your independent existence (ism) vanishes."
For further reading n this, see
Abdel-Kadir's: "Rasa'il L-Junaid, page 55.