I needed to clear my mind so I went fishing.
Why did you want to clear your mind?
I just want to be alone.
I like to be alone sometimes to, it's important to clear your mind sometimes. Getting too stressed is bad for your health.
Nah, I'm overly stressed and I need to clear my head to be able to handle my problems.
It's good that you take time for yourself. Too many people don't take a little time for themselves to recharge.