To achieve purity of mind, one should cultivate constant awareness by being mindful all the time. One should remain always aware of one's thoughts.
Rama SwamiThe scriptures say to wake up from the deep sleep of ignorance, remain fully awake, remain conscious, & go on learning.
Rama SwamiWhat Jesus meant was that whoever is attached to the worldly life and this earthly body will lose them in death. But whoever lets go of attachments to this worldly life and this earthly body and identifies with the permanence or God-consciousness that Jesus represented, will never die.
Rama SwamiDo not allow yourself to suppress your thoughts. Instead, let the thoughts come before you and become a sort of observer. Start observing your own mind. Do not try to escape; do not be afraid of your thinking.
Rama Swami