Link:- After describing the wonderful cosmic form of the Lord from the fifteenth verse to the eighteenth verse Arjuna in the next two verses describes fierceness, terror and power of the cosmic form.
pasyami tvam diptahutasavaktram svatejasa visvamidam tapantam
I see You, without beginning, middle or end, infinite in power, of infinite arms, the sun and the moon being Your eyes, the blazing fire Your mouth; warming the universe, withYour radiance. 19
Anadimadhyantam:- Arjuna saw the Lord, without a beginning, middle or end i.e., He had no limits. In the sixteenth verse, Arjuna also said, "I see, neither Your beginning, nor middle, nor end." This statement conveys the infinitude of the cosmic body i.e, infinitude in space, while in the nineteenth verse, it is in the context of the infinitude of time. It means, that the Lord, is beyond limits of time, space and causation. All, the space, time and causation, are within Him. Then how can He be encompassed by space, time and causation. In other words, He cannot be measured, by space, time and causation.
Anantavtryam:- Arjuna, wants to convey, that the Lord's power, strength, glory and energy, are unlimited.
Anantabahum:- The Lord is endowed, with numberless amens.
Sasisuryanetram:- The sun and the moon, which illuminate the entire universe, are the Lord's eyes. Thus, the universe is illuminated by His light.
Diptahuttsavaktram:-The Lord's mouth, is the blazing fire, which receives various articles offered, when religious sacrifice, is performed.
Svatejasa vifvamidam tapantam:- The Lord warms the universe, with His radiance. It means, that persons, things and incidents etc., that create unfavourable and undesirable circumstances, to torture beings, and those who are affected by those circumstances are, fragments of the cosmic form, of the Lord.