MIND : ITS MYSTERIES AND CONTROL : 10-4.1.
Chapter-10. SUDDHA MANAS AND ASUDDHA MANAS-4.
4. SATTVIC MIND NEEDED FOR ATMA-VICHARA-1.
A sharp, subtle, one-pointed, Sattvic (pure) mind is needed for Atma-Vichara (enquiry into Atman or the Supreme Spirit) and study of Upanishads.
A gross mind or practical (Vyavaharic) Buddhi with selfishness and lust is absolutely unfit for Vichara and philosophical ratiocination.
Selfishness clouds understanding. Selfishness is the bane of life.
The mind of a worldling is ever ready to absorb sexual thoughts. It cannot imbibe subtle, philosophical ideas.
It is callous and cannot vibrate properly to take in philosophical ideas.
You can drive a nail in clay, but not in a stone.
The mind has to be purified by Nishkama Karma, Japa, Pranayama and other spiritual Sadhanas.
To be continued ...