Through faith in God, you have to sanctify the body. Without the body, you cannot experience the mind and the intellect. To achieve your ideals, the body is the instrument. It should be kept in proper condition. While the body is an instrument, the user of the instrument is the Self. All senses function because of the Aathma. The Aathma is the Witness to everything. It is also known as Conscious Self. It derives its sanction from the Divine. It is a fragment of the Divine. Every human being is a spark of the Divine, as declared in the Geetha. The human being is essentially Divine, but tends to forget his Divine origin.
(SSS Vol XXVIII - Chap 22)