The Chimney Sweeper (Songs of Innocence)
How we cite our quotes:
Though the morning was cold, Tom was happy and warm;
So if all do their duty they need not fear harm. (23-24)
This description reminds us of the children playing in the dream, but it's more than a little weird. Tom shouldn't be happy, since he's living a pretty rough life, right? But he just woke up from an awesome dream, and that dream seems to help him get through the day.