(Sarcasm, please be sarcasm...)
Siddhis are the equivalent of psi powers. They combine a loose translation of what some would consider to be divinity with the power of the mortal mind. Think:
Man+Two-Fingers=Handstand.
Man+Super-Hot Coals= Pfft...
Man+No Food=
So what?
Man+Death= Kay, see ya in 20 minutes as...probably a monkey.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)