Yearn for flight.

A young bird that wants to fly, but simply can't, leans towards the end of his nest.
Surely if he attempted to fly, he would fall to the ground. But what he wanted was to soar, but for this he would need more.
Helpless and yearning, the young bird jumped from the nest.
He fixated upon the ground and spread his wings.
He let the wind push under them and he felt himself gaining an upward lift.
Suddenly he thought of his home, and everything he missed about it.
He thought of the safety it provided, and how it all worked for him.
He thought of his mother and everything she'd done for him.
His siblings and all the things they'd been through.
He thought of nothing, but his home.
The bird then hit the ground and all feeling left his body.
His yearn for flight had consumed him until he could no longer see what he really wanted.
The sudden absence threw him into a shock that took from him his life, and his yearn for flight.