been doing that for over 50 years
I have tried tha when thinking out projects of the mind. I couldn't go for even a moment. My mind is allways active as all mnds should be.
I thinks it's literally impossible to think of absolutely nothing
Yah I can help you,I'm good at that only if you have a source pan,bang!eeeeeew!then you'll be seeing stars for five minutes,that's it?