Philip Levine - End of April lyrics

Under a cherry tree I found a robin's egg, broken, but not shattered. I had been thinking of you, and was kneeling in the gra** among fallen blossoms when I saw it: a blue scrap, a delicate toy, as light as confetti It didn't seem real, but nature will do such things from time to time. I looked inside: it was glistening, hollow, a perfect shell except for the missing crown, which made it possible to look inside. What had been there is gone now and lives in my heart where, periodically, it opens up its wings, tearing me apart.