i kinda want to say its about depression, and someone sticks by his side through it. "Because I'm sick and the days are long" during depression, time doesn't seem to move. "I tried, and I tried to squeeze the blue out of the sky the yellow out of the sun" maybe he was trying really hard to not be depressed, so he tried living to the fullest. And that big invisible boulder you keep on your shoulders with the time we'll make it into sand a grain you'll keep in your hand." maybe she's carrying the weight of his depression and trying to help, and maybe over time it'll go away, but not fully, and they'll always remember that it was there.
but then again some parts don't fit. so maybe not.
i kinda want to say its about depression, and someone sticks by his side through it. "Because I'm sick and the days are long" during depression, time doesn't seem to move. "I tried, and I tried to squeeze the blue out of the sky the yellow out of the sun" maybe he was trying really hard to not be depressed, so he tried living to the fullest. And that big invisible boulder you keep on your shoulders with the time we'll make it into sand a grain you'll keep in your hand." maybe she's carrying the weight of his depression and trying to help, and maybe over time it'll go away, but not fully, and they'll always remember that it was there.
but then again some parts don't fit. so maybe not.