if everything happens that can't be done
This speaker doesn't come right out and tell us much about himself, but we Shmoop sleuths can guess a good bit about what he might be like, based on what he has written.
Most importantly, we know that he's in love thanks to line 28, and that the person he loves happens to love him, too. If you've ever been in love, you'll know that it's a pretty wonderful feeling, which gives us a context for all the exhilaration and wonder we've seen throughout this poem. Our speaker is so in love that he feels as if he has become one with his lover, and that they are brighter than the sun. Swoon.
We don't really know how old the speaker is, or where he lives, but he writes about running and skipping (6-7). So, regardless of how old the guy is, his love sure makes him feel young. Also, no matter where he actually lives, his love has made him feel like it's a place where anything is possible, where "everything happens that can't be done."
Strangely, our speaker, who's writing a poem, has a strong aversion to books. But we think that Shmoop can let him slide on that one. In fact, we might as well pin it on love too. Why sit in the house reading a book about love when you can go outside and actually be in love? Why not drop the novel, and go bask in the sun with your special someone?