Alka: Life energy. You see, I am only an arch-angel, not a full fledged god. I, by no means, have a limitless supply of energy and power to draw from, and doing tasks, like mending broken bones, takes a lot of energy out of me. His bones would've taken at least a year to have a recovery in which he could move freely, and as such, it demands a lot of life energy. I won't suck the life out of you, but in order to fully repair the crater, you'll be out for... I give it at least 2 days for a guy like you. It may be less though, if you have some natural way of restoring your energy, like I usually do.