Rite of M'al Sharran
A deadly Jaffa ritual in which the symbiote of a warrior is removed, depriving him of its natural healing abilities. The absence of the immune system causes the Jaffa to relive important moments in his or her life, tracing the key paths they took over their lifetime. Frequently this allows them to reassess themselves if they have been compromised by an external source, such as Goa'uld brainwashing.
Threshold - Bra'tac forces a reluctantly brainwashed Teal'c to endure the Rite of Malshuraan in SG-1's hope that Teal'c will rediscover his true nature and beliefs: a believer in freedom from false gods.
Stronghold - The Jaffa Maz'rai undergoes his own Rite of M'al Sharran after he has realized he was brainwashed, and dies in the attempt.