One great theory I would like to hold firm is the one that states that learning is our "life experiences from conception, through birth and to death".
I liked what you shared with us, this part where you say that life itself is a great learning experience, from birth to death is something that I agree with a lot, because I have this same thought, as much as bad things happen and naturally the good ones, everything is a learning experience for us, so we are in a process of constant evolution with everything we learn.
Cheers!