The word kriyarthaih means by performing ritualistic ceremonies to satisfy the demigods. The word vipascitah is explained in the Taittiriya Upanisad as follows: satyam jnanam anantam brahma. yo veda nihitam guhayam parame vyoman. so snute sarvan kaman saha brahmana vipasciteti. As Krsna states in Bhagavad-gita (7.19), bahunam janmanam ante jnanavan mam prapadyate: After many births and deaths, he who is actually in knowledge surrenders unto Me. When one understands that the Lord is situated in everyones heart and actually sees the Lord present everywhere, he has perfect knowledge. The word jata-vedah means fire which is produced by rubbing wood. In Vedic times, learned sages could bring forth fire from wood. Jata-vedah also indicates the fire in the stomach, which digests everything we eat and which produces an appetite. The word gudha is explained in the Svetasvatara Upanisad. Eko devah sarva-bhutesu gudhah: The Supreme Personality of Godhead is understood by chanting the Vedic mantras. Sarva-vyapi sarva-bhutantar-atma: He is all-pervading, and He is within the heart of living entities. Karmadhyaksah sarva-bhutadhivasah: He witnesses all activities of the living entity. Saksi ceta kevalo nirgunas ca: The Supreme Lord is the witness as well as the living force, yet He is transcendental to all material qualities.