When it all just clicks. I got Caravan's "In the Land of Grey and Pink" about two months ago, and I listened to it about 3 or 4 times and thought it was a pretty good album. I put aside for a month, and I just put it on again today and it sounds brilliant. I love it. I think for an album to really make sense you have to get acquainted with it, put it aside for a while, and put it on again. But every time I come across something new and different that I don't think is brilliant at first and I finally come to that listen that lets me understand it, it's always a thrill. I think the best one of these revelations was when I finally realized that "Larks' Tongues in Aspic" was, much more than noise, SHEER GENIUS. I find that the more difficult the album is, the more rewarding it is when you discover its true genius (providing that that genius is actually there to begin with).
Currently on "Nine Feet Underground," and I'm definitely in love.