When you’re in love, you feel your heart burst with happiness…

Like your heartbeat pounding in joy and not in fear

When you’re also in love, you feel like you’re falling from the sky in Superman’s arms

But in a good way.

When you’re with someone you care about, you want to be there when they fall apart.

It shows you cares about them emotionally, physically and mentally.

I guess that's what it means to be in love.