I was curious  about kundilini yoga and the stages of Insight.     If stream entry is equal to activating the crown Chakra? (enlightenment.)       Then would the A&P be equal  to activating the Chakra in the lower center of forehead?     Also is that the same as the third eye?

kundalini ~ piti ~ a&p

nothing to do with enlightenment

> If stream entry is equal to activating the crown Chakra? (enlightenment.)  

Whos says that? (justs curious)

As far as I know:

Stream entry is not enlightenment (Arahantship is)
Stream entry is not activating the crown Chakra (no relation) and
Enlightenment is not activating the crown Chakra (no relation)

So they're three different situations