It's nothing so great as selfless love.

If you think about it, to a parent, a child

is a existence so close to them as to almost be a part of them.

To stake one's life to protect one's child...

is, simply put, the same as protecting their own future.

Putting one's self into danger for that reason

is often referred to as selfless love, but...

putting it that way is really just the supreme manifestation of one's own ego.