A power yoga siddhi (metaphysics) told us about the ability of such "clairaudience" (hearing voices that can not be heard by normal ears naked). That is one example that tells us about how yoga can benefit. Having acknowledged the benefits of further below, we will believe that yoga gives us great benefits.
Or "clairvoyance" (the ability to send and receive thoughts) is some of Siddhi "occult power yoga" known to man. Similarly, the ability to organize and eliminate things that suit called siddhi.
