Why does the body of a Yogi not emit a bad smell for days after death?

Swami replied:- A Yogi means one who participates in the service of the Lord in human form as said in the Gita (Karma Yogena Yoginaam). Service means practical sacrifice, which proves the absence of even an iota of selfishness. Selfishness is the bad odor. Sacrifice is the sweet scent. People sacrifice only words and mind to the Lord and that too only in their leisure time. Their sacrifice is illusory and completely false. This is the reason why the body of any person gives bad smell immediately after the death. Since the Yogi is the embodiment of sacrifice, his body does not give a bad odor. This is the reason why the fragrance of lotus flowers, scented sacred ash, sandal paste etc., is emitted from the Lord as devotees experience frequently. Datta means Dana i.e., sacrifice. He is the embodiment of the sweet fragrance (Devotees of Swami often experience the sweet fragrances from Swami).