This line took on a special meaning for me after I watched a documentary about Nick Drake where a friend, describing his demeanor towards the end of his life, tells a story about knocking on his door to no answer, then going back around the house and looking in through a window and seeing Drake standing alone in the room staring at the wall. He gave up on the window, I guess.
It's sad, what happened to Nick Drake, but I don't find his music to be that. To me there's something hopefull and uplifting about it. With a possible exception for Black Eyed Dog.
"Day is Done", even?I know what you mean though. I was listening to a collection of home recordings he did, his earliest things - it's amazing how vibrant and fulfilling the music he was creating at such a young age is - he wrote much of his first album when he was 19! I imagine he found great happiness in composing his songs. Certainly as much as we all do in listening to them.