How to make the mind light, How to free the mind from worldly impurities ? By rendering selfless service to suffering humanity without any restriction of Caste, Creed, Religion or Sex. So you as Sadhakas (Spiritual aspirants), you must remember that the dharma of your life is to move forward from matter to abstract, from abstract to soul, from soul to the supreme soul. This is the dharma of your life and while performing this dharma, you are to render selfless service to all humanity. You must not forget this fact. If you are successful in rendering selfless service to the world, certainly you will make progress in your spiritual life.