Someone asked what I do in my free time. I couldn't answer

Today someone asked me what I do in my free time, and I couldn't answer.

This question is way tougher than how it initially suggests.
Suddenly I realized, the idea of free time hasn't existed for me for a while now.

The idea of free time, when I don't do what I normally do, is so strange. Because that implies I am not free doing what I am doing.

Or I am doing something meaningless to me
.

This year, I found in me a single purpose that became the primary force behind all of my actions. So powerful, so fundamental, so true to heart that it fuels every single decision I made since. Feels like my life finally made sense.

It is either I am free all the time, or I am never truly free.