Page 103 - Complete Works of Dr. KCV Volume 1

Heart Region
The physical heart is well known to be the pumping station of the blood. Also it is that which receives on the one hand the venous or impure blood, and that which sends out on the other hand the arterial or purified blood. These two processes are very complementary and they are very much similar to what has been suggested to be done in the purification of the mind itself, that is to say, on the one hand, there is necessity to remove all impurity in our thoughts and on the other prevent all impurity from entering into our thoughts. This analogous nature of the processes facilitates the unity of the physical, vital and mental levels of man. The meditation on the heart impels the processes of cleaning of all the solidity or grossness or impurity that has settled in our system in the form of obstructions. Usually they appear as black spots or areas in the regions affected: this of course is to be seen only by the inward vision in the course of inner observation.
The heart as the centre of the mind or manas is well known since it is the heart that throbs and warms up or is gripped in fear. Modern psycho- physiologists aver that this is due to the activity of the adrenal glands and the sympathetic autonomous nervous system which is the activated sector of man in all emotions.
The meditation on the heart is also necessary for, it is for man at least the point of greatest importance. Some think that one should meditate on the Kundalini at the Muladhara chakra (sacral plexus): some others that the meditation should be on the centre or middle of the eyebrows (bhru- madhya), and still others that it should be done at the crown of the head (brahma randhra or sahasradala). All these are not so very rational as the natural procedure at the heart. We all know that when we declare ourselves we clasp or tap our chest region, especially the right side; since obviously we all call that with the affirmation of 'I'. However, this is not counselled by Sri Ram Chandraji, who with the Gitacarya, Sri Krishna claims that the Divine Lord rests in the heart (physical).
With such a natural centre for meditation it is better to start. The meditation on the heart begins to shatter the solidity which has crept into the senses