I'm not trying to say I don't care about someone or some event if I learn to let go. Its quite the opposite. I care deeply and I feel it deeply. I'm a very sensitive person and there is very little that escapes my attention. What I do feel, I feel with such an intensity that it often overwhelms me. So learning to let go is not something I say casually or lightly or with callous.
Learning to let go means that I feel all of this, but I don't attach my existence to those feelings and emotions. It means that I honor and respect those feelings and emotions, but I don't allow myself to become them. They are there for me to acknowledge, but my life is much more than this. Again, I'm not saying that we become unattached to their existence, but that we don't attach our purpose in life to them. It may not be an easy concept to understand in what I am saying.