Truthfullness, non provoking pleasing beneficial speeches are the tapas of voice.

Peace of mind, joyous, quietness, restricting oneself from the fuz of world, purity in thinking are the tapas of mind.

All deities, Devas, Yakshas, Rakshasas derive power only from God. We can be benefited to great extent if we approach other Gods directly and gain favour with no expensive worship instead of worshipping other deities and thereby gain favour from them. Approaching other deities to gain favour of God through them is like purchasing articles from a retailer while the wholesaler is willing tothem at a throw away price and also like approaching a peon or clerk of an officer by tempting God through him in illegal ways to gain favour from his straight-forward boss, who can oblige without introduction by brokers. Wicked persons, please ghosts evil spirits, booth prethas to do mischief to others and ruin themselves.