What makes your heart sing?

Yesterday I was asked what I want to do in my life and what my vision was. To be honest, the first thought was 'I don't know. Seriously. I don't. What do I want to do in my life?'. Then she rephrased the question and asked me 'What makes your heart sing?'

Let me back up a little. Whenever someone asks me, and some of you definitely know this, I know what I want to do and how I want be in the future. But in this state of deeper reflection I was completely unable to answer it. When she tried to ask it differently, I could answer it easily.

What makes my heart sing are smiles from and to strangers. (something like this)
It's embracing that I'm not alone in this world and that it definitely does not revolve around me. It's being kind to others and expect nothing in return but a smile. Yes, that is it. 

I'm not yet at the point where I can formulate a vision for myself out of it. I'd say it's a good start though.


For now I don't want to write much more, just leave you with this thought:

What does make your heart sing? When are your moments of honest and pure happiness? (Even if they only last for seconds)