That idea in their head that tells them to change situations to their liking, that knowing of what should be done, that knowing of what they want to do, and that knowing of what they want the world to be like. Do Ps have that too, or are we just playing it by ear?
Ps are trying to understand the world and perfect themselves.
Js are trying to understand themselves and perfect the world.
Ps will tell me what they think.
Js will tell me what they know.