When your body, mind and soul are healthy and harmonious, you will bring health and harmony to the world- not by withdrawing from the world, but by being a healthy, living organ of the body of humanity.
Death is unimportant to a yogi; he does not mind when he is going to die. What happens after death is immaterial to him. He is only concerned with life-with how he can use his life for the betterment of humanity. Having undergone various types of pain in his life and having acquired a certain mastery over pain, he develops compassion to help society and maintains himself in purity and holiness. The yogi has no interest beyond that.
