Scholar: Herein we find the history of the Bhagavad-gītā traced from a remote time when it was delivered to the royal order, the king of all planets. This science is especially meant for the perfection of the inhabitants, and therefore, the royal order should understand it in order to be able to rule the citizens and protect them from material bondage to lust. Human life is meant for cultivation of spiritual knowledge, the eternal relationship with the Supreme Personality of Godhead, and the executive heads of all states and all planets are obliged to impart this lesson to the citizens by education, culture and devotion. In other words, the executive heads of all states are intended to spread the science of Kṛṣṇa consciousness so that the people may take advantage of this great science and pursue a successful path, utilizing the opportunity of the human form of life...
Prabhupāda: This Vivasvān is the original person of the kṣatriya family, Sūrya-vaṁśa.
Scholar: Sūrya-vaṁśa.
Prabhupāda: Yes. Eh?
Devotee: Does he mention Vivasvān here? Should I read it?
Prabhupāda: Yes.
Scholar: The sun is the king of the planets and the sun god (at present of the name Vivasvān) rules...
Prabhupāda: At the present moment, the president or the predominating person, his name is given, Vivasvān.