Dearest Gurudev, if our consciousness is so powerful, then why doesn't it heal our body ailments and why do we need doctors and medicines. What is the role of the soul in the body.
Body heals, not just with medicine. You give someone medicine and do not let them sleep, then see if the body heals. Impossible! Deep rest is required, and meditation is one such rest.
Our body is not used to meditation from the very beginning, or due the circumstances and surrounding, the conditioning of the body is such that medicines also have a role to play. That is why Ayurveda is also a part of the Vedic wisdom, and not just mantras and yoga. Yoga and Ayurveda both have an equal share in keeping the body healthy.