Prabhupāda: How a man becomes attractive? First of all we have to understand that. Suppose a very rich man is attractive, a very intelligent man is attractive, a beautiful man is attractive, a famous man is attractive, a wise man is attractive, a renounced man is also attractive. These are attractive features. So if we analyze Kṛṣṇa, we find all these six opulences of attractive men fully present in Kṛṣṇa.
So even from historical references, there is not a single person who can be compared with Kṛṣṇa. Therefore He is all-attractive. And everything that we experience, that is the manifestation of Kṛṣṇa's energy. Parāsya śaktir vividhaiva śruyate (Śvetāśvatara Upaniṣad 6.8, CC Madhya 13.65, purport).
His energies are differently manifested. Similarly, in Viṣṇu Purāṇa also, it is said, parasya brahmaṇaḥ śaktis tathaiva akhilaṁ jagat (Viṣṇu Purāṇa 1.22.56).
Akhilaṁ jagat means the whole cosmic manifestation is a display of the multi-energies of the Supreme Personality of Godhead. So because He is fully energetic, therefore He is attractive and cause of all causes. These are the evidences of Vedic literatures.
And when He was actually present, He was attractive in so many features. In the Battlefield of Kurukṣetra, when He was speaking the Bhagavad-gītā, the speech which He delivered, although He is not present now in our vision, you cannot find in the whole world such attractive speech of wisdom. Nobody can say.
What we have got practical experience about His speech, which is still going on, still we are trying to understand. The greatest scholars of the world, the philosophers, they are trying to understand Bhagavad-gītā. There were many, many great scholars and saintly persons all over India, but each and every one of them have tried to understand Bhagavad-gītā. Even Professor Einstein, he was reading Bhagavad-gītā.
So His attractiveness is evidently presented by the wisdom of Bhagavad-gītā. So He is all-attractive. There is no doubt about it. And in the Vedic literature we also understand, tasmin vijñāte sarvam evaṁ vijñātaṁ bhavati (Muṇḍaka Upaniṣad 1.3):
"If you can understand the Supreme Personality of Godhead, or the Absolute Truth, then sarvam evaṁ vijñātaṁ bhavati: you can understand everything, how it is working." Because everything is display of His energy. So if you can understand how His energy is acting, then you can understand the whole cosmic manifestation. That is explained in the Vedic literature.