Awesome it is when someone steps into a life and offers love and counsel and direction, and even changes the trajectory of a someone's life. It happened for Donald Miller (To Own a Dragon, later re-published as something else). My brother and his wife are doing it doing it for two amazing little boys. I get excited when I hear about mentoring projects matching fatherless boys to men who can reach out to them.
There is One who has a special compassion for the fatherless, and says He will be father to the fatherless... "Father of the fatherless, come down and rescue us, we need you again"