Anatta. No soul,no self.

"Anatta', opposite to the Hindu belief of 'Anatman'..(which is belief in a soul,or something permanent).
According to Buddhism nothing is permanent,in fact nothing exists unchanging for even a nanosecond. All is in flux.
And for that reason there is no soul that transmigrates or goes to heaven after death. There isn't even a fixed 'i' or a fixed 'Me' or 'Self'..that travels from one moment to the next during life.
Thoughts exist but there is no thinker of those thoughts.