I actually have a million answers to that question, but that one answer above seems to sum it up.
I have it for my kids and they have it for me. My three sons are so loving that I must admit it surprises me. Growing up with four sisters, I never knew boys were really so - nice.
My teenage boys tell me they love me, even in front of their friends and girlfriends.
My husband and I look at these happy, well adjusted kids, that even enjoy school and make good grades and we can't help but wonder where they came from. Where are the sullen, trouble making teens that they always show on TV?
I'm not saying they are perfect, and neither am I. But to each other we are! I guess that's Unconditional Love. And maybe a great deal of luck. LOL