"There Should Be a Word For..."

I wanted to find out what others on the internet thought there should be a word for. This may help when trying to approach the task "Invent a word and give it a definition".

http://www.earthlab.net/?p=53

When you enter the subway and it’s dark and raining heavily, and when you get out it’s lighter and the rain is soft and the world is quiet and peaceful and you feel good, like a small bird is fluttering in your heart.

http://twitter.com/aplusk/status/20712484715

There should be a word that defines that feeling of coming home after being gone for a while. It's so nice.