Four stages of enlightenment

Defilements are progressively eradicated at the four stages of enlightenment :
the stage of streamwinner, sotapanna, the stage of the once-returner,
sagadakami, the stage of the non-returner, anagami, and the stage of arahat,
the perfected one.  The arahat who has eradicated all defilements, will not be
reborn when he has passed away.

Topic 74