The demon used the word abhavaya, which means for killing. Sridhara Svami comments that this killing means liberating, or, in other words, killing the process of continued birth and death. The Lord kills the process of birth and death and keeps Himself invisible. The activities of the Lords internal potency are inconceivable, but by a slight exhibition of this potency, the Lord, by His grace, can deliver one from nescience. Sucah means miseries; the miseries of material existence can be extinguished by the Lord by His potential energy of internal yogamaya. In the Upanisads (Svetasvatara Upanisad 6.8) it is stated, parasya saktir vividhaiva sruyate. The Lord is invisible to the eyes of the common man, but His energies act in various ways. When demons are in adversity, they think that God is hiding Himself and is working by His mystic potency. They think that if they can find God they can kill Him just by seeing Him. Hiranyaksa thought that way, and he challenged the Lord: You have done tremendous harm to our community, taking the part of the demigods, and You have killed our kinsmen in so many ways, always keeping Yourself hidden. Now I see You face to face, and I am not going to let You go. I shall kill You and save my kinsmen from Your mystic misdeeds.