(Baqa). Subsistence with Allah for perpetuity. After the stage of annihilation in Allah, Allah either keeps His slave in this Station of stations or He sends him back to the world to perfect the still imperfect ones. Abiding is the slave's return to humanity in the robes of honour. Now he sees Allah established in everything and at all times. Baqa' corresponds to the third and final stage of 'self-annihilation'. This is the condition of the Slave and the Friend.
(Fana'). Self-annihilation or self-effacement or dissolution or passing away from self. Through being joined to Allah, the Real; man is annihilated from himself - the 'limited existence' of the traveller is overpowered by the 'absolute existence' of Allah, so that the traveller becomes unaware of his own self and the creation. Fana' is the last stage on the ascent to Allah. When travelling to the Source, the seeker passes through different levels of fana', each of which brings him closer to his Goal. There are hundreds, even thousands, of fana's. Every time a form of ignorance is removed to be replaced by knowledge, the murid has experienced fana'. He has tasted the annihilation of an ignorance. And, every moment of existence is in fact a moment which is pregnant with its own particular knowledge. So, for the aware one, each moment can be a fana'. However, within the higher teaching of Tasawwuf there are three major types of fana', through which the murid must travel if he is to reach the Absolute. These are Annihilation in the Murshid/Spiritual Guide, Annihilation in the Messenger and Annihilation in Allah.
('Uruj at tarkib).The supra-formal spiritual ascent of composition (which is actually a descent), during which man journeys from inward non-manifestation within the Knowledge of Allah to outward manifestation within the world. Man's Return Journey to Allah is the spiritual ascent of decomposition.