SB 01.07.30 samhatyanyonyam ubhayos... cited

Expressions researched:
"avrtya rodasi kham ca" |"samhatyanyonyam ubhayos" |"tejasi sara-samvrte" |"vavrdhate rka-vahnivat"

SB Canto 1

SB 1.7.30, Translation and Purport:

When the rays of the two brahmāstras combined, a great circle of fire, like the disc of the sun, covered all outer space and the whole firmament of planets.

The heat created by the flash of a brahmāstra resembles the fire exhibited in the sun globe at the time of cosmic annihilation. The radiation of atomic energy is very insignificant in comparison to the heat produced by a brahmāstra. The atomic bomb explosion can at utmost blow up one globe, but the heat produced by the brahmāstra can destroy the whole cosmic situation. The comparison is therefore made to the heat at the time of annihilation.

Srimad-Bhagavatam Lectures

Lecture on SB 1.7.30-31 -- Vrndavana, September 26, 1976:

Pradyumna: "When the rays of the two brahmāstras combined, a great circle of fire, like the disc of the sun, covered all outer space and the whole firmament of planets. All the population of the three worlds was scorched by the combined heat of the weapons. Everyone was reminded of the sāṁvartaka fire, which takes place at the time of annihilation."

Prabhupāda:

saṁhatyānyonyam ubhayos

tejasī śara-saṁvṛte

āvṛtya rodasī khaṁ ca

vavṛdhāte 'rka-vahnivat

(SB 1.7.30)

dṛṣṭvāstra-tejas tu tayos

trīl lokān pradahan mahat

dahyamānāḥ prajāḥ sarvāḥ

sāṁvartakam amaṁsata

(SB 1.7.31)

So the heat increased. Radiation heat increased. One weapon was released by Aśvatthāmā, another by Arjuna to counteract, and the heat was so terrible that dahyamānāḥ prajāḥ sarvāḥ, all the inhabitants of different planets, they felt the great heat produced by two brahmāstras. And sāṁvartakam amaṁsata. The sāṁvartaka fire is explained in the śāstra, that in the Kali-yuga... At the last there will be Kali-yuga. In the Kali-yuga there will be no rainfall. So everything will dry. Not this Kali-yuga, but at the end of the universal life there will be great fire all over the universe. That is called sāṁvartaka. And everything will be ablaze. This fire will take place on account of the heat increase of the sun. It is said that the present temperature of the sun will be increased twelve times, so naturally there will be fire. As we know, sometimes there is forest fire. Similarly, the fire will take place, and everything will be burned into ashes. Then there will be rain. After heat... You have got experience when the atmosphere is too hot, then the rain falls. Same process. When everything will be burned into ashes there will be rain, torrents of rain, and it is said just like the trunk of the elephant, the rainfall will be like that. So everything will be covered with water. That is annihilation. Pralaya-payodhi-jale dhṛtavān asi vedam **. Then there will be pralaya, and by the grace of the Lord the Vedas will be saved. Keśava dhṛta-mīna-śarīra jaya jagadīśa hare.