In order to explain why the ordinary Sadhus and Yogis take to tobacco and gānja [an intoxicant], I said that these cause stimulation of the physical brain. But these have reactions. And to stimulate the brain thus is not the proper process.
You can't make a head and brains out of a brass knob with nothing in it. You couldn't do it when your uncle George was living much less when he's dead.
Though the Life Force supplies us with its own purpose, it has no other brains to work with than those it has painfully and imperfectly evolved in our heads.
Conscious attention is a designed function of the brain
which scans the environment for any trouble making changes.
If you identify yourself with your trouble shooter, then naturally you define yourself as being in a perpetual state of anxiety.