I never thought I could be depressed in any way, but I came to see that hole you were talking about a bit. I think the problem is that when being in depression, one is too much in your head and similar to startups if one can't bounce off their "ideas" from something, they ou commit "idea-incest" and they start getting weird thoughts that are detached to reality. You don't want that and I think as you said, it takes that certain corn to pull you out of that sticky pool of your entangled thoughts. :)