Free will feels like the mirage illusion

Free will feels like the mirage illusion in my experience.
If I don’t pay close attention to it or without close examination,
It feels like it is always there.
But once I really concentrate on it and pay very close attention,
I find that it vanishes.
Then once again, once my mind moves over to other things,
The free will component seems to reappear.

It reminds me of the illusion of solidity we experience.
When looking deeper and deeper into the atom,
We find 99.99% empty space.
But yet on returning to daily life,
We once again experience solidity everywhere.