Satori and stream entry Is Satori like a stage of stream entry? Is Satori only an intellectual knowing or something deeper than that?
From the wikipedia entry about Satori:


  Satori is considered a "first step" or embarkation toward Buddhahood


This is very much what Stream Entry means in Theravada. Everything else in that entry makes Satori appear to be the same thing as Stream Entry.

The meaning of Satori as "seeing into one's true nature" is also the same as the meaning of Stream entry when you consider that "one's true nature" in the context of Chan Buddhism is Nirvana/Nibbana.

Therefore it seems that these two terms do refer to the same thing.