Our natural tendency is to go to other, better planet. Therefore people are trying to go the moon planet. Similarly, you can go to the sun planet, you can go to the Brahmaloka planet, Siddhaloka planet, heavenly planet. There are so many. But the information is, even though you reach the topmost planet of this universe, still, there the four principles of material life, namely birth, death, old age and disease, are there. So we can go to the topmost planet. There is process how to go:
- ūrdhvaṁ gacchanti sattva-sthā
- madhye tiṣṭhanti rājasāḥ
- jaghanya-guṇa-vṛtti-sthā
- adho gacchanti tāmasāḥ
- (BG 14.18)
If you keep yourself in sattva-guṇa, or in the modes of goodness, you are promoted to the higher planetary system, even to the topmost planetary system. That is called ūrdhvaṁ gacchanti sattva-sthā. And if you keep yourself in the modes of passion, you shall remain within the middle planetary system. This is middle planetary system, this earthly planet; it is called Bhūrloka. Then above this there is Bhuvarloka. Then above that, Svargaloka. That is heavenly planet. The heavenly planets begins from the moon planet. So . . . and Jaghanya-guṇa-vṛtti-sthā adho gacchanti tāmasāḥ. And those who are in the modes of darkness, they go down, down, down. The animal life is also amongst the down, I mean to say, modes of life.