What's behind it?

I wonder why, tonight, my emotions are overflowing? I've been trying to think of what might have caused this flood of memories or wishes or whatever it is that's overwhelming me. But I can't think of a trigger. Maybe it's just time. The steady beat of time continues without pause. In fact, it's faster and faster with each passing hour. Maybe that's it.

I listen to Tacoma Trailer, an instrumental piece from Leonard Cohen, and I cannot control myself. I just weep. I am no longer embarrassed by it. I'm just surprised. And I wonder. What's behind it?