The biochemical aspect of mind is physicochemical.

The concept of mind presented by the Upanishads and other spiritual texts is in a way biophysical.

Biochemical aspect is to be treated by psychiatrist.

The spiritual or biophysical aspect is useful for meditation, the Jnaana, Karma and Bhakri margaas.

Both aspects should not be confused.

The domain of each of them is different and should not be clubbed.

Each should be treated and dealt with according to respective sciences and spirituality for relief.