Q.It is said that spirit is very tiny, invisible to the gross material eye! but for any person willing to do bhakti, he should first understand distinction between body and spirit! For a neophyte how is it possible to know about something(spirit) which is not visible to gross material senses! For the gross materialists won’t this be an easy argument for atheism?
A.The spirit soul can be detected by inference, since there is no change in the material composition of a body at the time of death. So one may inquire from the gross materialist as to what is the cause of consciousness?
However this debate can and will go on forever. Our senses are far from perfect and even with all the material advancements we cannot even solve the mysteries of the material world – trying to reach or even understand Krishna, or even the spirit soul, with our imperfect senses is impossible. The basis of spiritual advancement is to have faith in the scriptures. The ultimate proof of the existence of the soul is that Krishna affirms it in the Bhagavad Gita.