Rain
You know that feeling when you hear the rain and go stand in a window to watch it fall... you want drop everything you're doing to go outside and walk around taking in the world until you're soaking wet, and you won't care you're wet because because life is great and when you do go back in you sit down with a nice hot drink and relax by a fire after having changed into dry clothes.... and then you realize you're still standing at the window...