This was brought up in the ESTP thread, but I wanted to post it here for broader discussion.
It seems that the ESTP, ENTP and ENFP types grow experientially. They push the boundaries and limits of the things that cause them the most pleasure and pain. ESTPs push physical boundaries, ENTPs mental/intellectual and ENFPs emotional. (Not sure about ESFPs as that wasn't part of the discussion)
For me, I definitely use emotional challenges to grow as a person. I get really bored when I don't feel strong emotions for a while. Even if I go through something outwardly terrible, if it created strange and never-felt-before feelings in me, then it's still worth something. I treasure the memories of those passions probably as much as some other people love to polish their trophies. Physical and intellectual challenges just don't mean as much to me.
Have other NFs felt the same way? Or is this just an ENFP thing?
What do you use to self-actualize, to grow as a person?
If the E--Ps tend to push boundaries experientially to grow, then how do the Js do it? How do introverts do it as opposed to extroverts? How do people with irrational dominant functions do it and how do people with rational dominant functions?