Why meditate?

A man who looks for emancipation from miseries and sorrows of life resorts to meditation as a means of salvation.  Man can attain freedom from mental and material restlessness if he controls his mind.  Even centuries back, the Indians knew this.  Self knowledge that helps to know one's body can be acquired through meditation.  The modern man is subject to all sorts of tensions and stresses that in turn, cause high blood pressure and cardiac problems.  Even these diseases can be cured if one practises continuous meditation.

When one observes meditation, the energy collected in different centres of the body gets dispersed in the relevant areas.  This regularises the rhythm of the body.  This happens because, as one is fully absorbed in meditation, the beta waves of the brain rise themselves to the wavelength of gamma and delta.  The sages of ancient India chose to sit under the banyan tree to do meditation since it helps the body extract all negative energy and fill in with positive energy, instead.