Just like the sun globe and the sun-god and the sunshine. The sunshine is also light, and there is temperature; and the sun globe is also light, and there is temperature; and the sun-god within the sun globe, there is the personality known as sun-god, that is also light and temperature. But all this light and temperature, there are degrees. The sunshine degree of temperature light is less than the sun globe, and the sun globe temperature light is less than the sun-god. So when you reach the sun-god, then you understand the complete temperature and light. That completeness is realized by this word bhagavān. Therefore the words are used here, asaṁśayaṁ samagram: "You can understand Me in full, asaṁśayam, and without any doubt." So if you are interested to understand the Absolute Truth, God, then you must take to bhakti-yoga. And if we want to understand the Absolute Truth with some doubt, and not in complete, then we may take jñāna-yoga or dhyāna-yoga.
So our this Kṛṣṇa consciousness movement is meant for understanding the Absolute Truth in complete, without any doubt and without any incompleteness. This is also confirmed in the Eighteenth Chapter, that if you want to know God in completeness and without any doubt, then you have to take to bhakti-yoga process. It is said:
- bhaktyā mām abhijānāti
- yāvān yaś cāsmi tattvataḥ
- tato māṁ tattvato jñātvā
- viśate tad-anantaram
- (BG 18.55)
The meaning is that, "One can understand Me only by this bhakti-yoga process. And when one is fully aware of the Supreme Personality of Godhead, then he becomes fit to enter into the kingdom of God." So the purpose of yoga practice is to promote, or to leave this material atmosphere, and enter into the spiritual atmosphere, all the yogīs. The jñāna-yogīs, they remain in the impersonal feature of the Absolute Truth; the dhyāna-yoga is practicing the localized aspect; but the bhakti-yogī, he is promoted directly in the planet which is called Goloka Vṛndāvana, and there he associates with the Supreme Personality of Godhead and enjoys life blissfully, eternally.
So there are different planetary systems within this material world. Just like we are situated, it is called Bhūrloka. Above this, there is Bhuvarloka. Above that, there is Svarloka, there is Janaloka, there is Maharloka, Satyaloka. In this way, there are seven steps of planetary system up, and similarly, seven planetary system down. So by jñāna-yoga, by bhakti-yoga . . . dhyāna-yoga, means mystic yoga system, we can be promoted to the planetary system, but if you practice the bhakti-yoga, then you go to the transcendental world directly and associate with the Supreme Personality of Godhead. The dhyāna-yogī and jñāna-yogī can also go to the Brahmaloka or brahma-jyotir, but there is chance of falling down again to this material world.