Reasons breastfeeding rocks #1: Let down helps me let go.
Breastfeeding stimulates the release of the hormones oxytocin and prolactin, which promote relaxation, stress-release and a general sense of well-being. Oxytocin is the amazing hormone which induced your labor (or if it was artificially induced, synthetic pitocin is structurally modeled after oxytocin), and is also the hormone which helped your uterus contract back down to the size of your fist from the size of a watermelon right after birth.
This hormone release also promotes sleep if you are having difficulties, helps you fall back asleep more quickly during night time feedings, and helps you to sleep more deeply, meaning you feel more rested after a short amount of sleep than you would if you weren't breastfeeding. Amazing!
So sit back and relax while you nourish your baby with those luscious boobs of yours!