"Colonel O'Neill has officially informed me that—I have my 'mojo' back."

—Teal'c, after returning the fact he can Kelno'reem again

Kelno'reem is the Jaffa meditation ritual akin to sleep. While the Jaffa meditates, the Goa'uld symbiote repairs any health ailment that the Jaffa suffers from. It can also be used to slow down the Jaffa's heart, and so much that it can beat once per minute, or even stop the heart altogether, in this state the Jaffa is able to communicate with his symbiote however this kind of communication is forbidden by the Goa'uld as they don't want the Jaffa to influence the mind of their youngs. Teal'c often lights candles to perform the meditation. Whether other Jaffa do the same is unknown. (SG1: "Holiday", "Descent", "Fallen", "Crossroads")

In 1998, Teal'c was forced to help Colonel Jack O'Neill achieve Kelno'reem after Ma'chello's device switched their bodies, forcing O'Neill to achieve Kelno'reem before his body would die from the lack of an immune system(SG1: "Holiday")

In 2003, after Teal'c lost his symbiote, Teal'c saw no point in attempting to perform the ritual, since the symbiote is often key to Kelno'reem. On the advice of Daniel Jackson- who attempted to use the meditation to access dormant memories of his Ascension-, Teal'c was able to perform the Kelno'reem again, noting that it helped him to feel better even if he didn't need it any more. (SG1: "Orpheus")