Durāśayā ye bahir-artha-māninaḥ. Bahiḥ. Bahiḥ means external. This material world is the external energy of God, and the spiritual world is the internal energy of God. So we are in the external energy of God. The external energy of God means although we are eternal, we have to accept different types of body according to our desire, according to our tendency to enjoy this material world, and therefore that facility is given in this material world. In the spiritual world there is only one aim—they are all eternal servitors of the Supreme Personality of Godhead. They have no other desire. That is spiritual world. So you can transform this material world into spiritual world if you have got only aim to please the Supreme Personality of Godhead. Then it can be transformed into spiritual world, although spiritual world is differently situated. Paras tasmāt tu bhāvo 'nyo 'vyakto 'vyaktāt sanātanaḥ (BG 8.20). There is another nature which is spiritual world. They have no information. But we get information from Bhagavad-gītā and other śāstras that spiritual world is still bigger. This material world is the one-fourth of the God's creation, and the spiritual world is the three-fourth. It is stated in the Bhagavad-gītā, ekāṁśena sthito jagat.
When Arjuna inquired about Kṛṣṇa's vibhūti, His opulence, He summarized,
- athavā bahunaitena
- kim jñātena tavārjuna
- viṣṭabhyā idaṁ kṛtsnam
- ekāṁśena sthito jagat
- (BG 10.42)
"My dear Arjuna, how long I shall describe you about My opulence? I summarize it that this material world is only one-fourth manifestation of My opulence." Ekāṁśena sthito jagat. This material world means... You have... We have got experience about this universe up to the sky, as far as we can see, the horizon. This is one universe. And there are millions of universes like this. That is stated in the Brahma-saṁhitā, that yasya prabhā prabhavato jagad-aṇḍa-koṭi-koṭiṣv aśeṣa-vasudhādi-vibhūti-bhinnaṁ (Bs. 5.40). Yasya prabhā. The Lord's effulgence is Brahman effulgence. Within that Brahman effulgence there are innumerable universes, jagad-aṇḍa-koṭi. Jagad-aṇḍa means this brahmāṇḍa. Aṇḍa. It is round; it is not flat. Aṇḍa, just like egg. Koṭi. Koṭi means innumerable. And in each universe... Yasya prabhā prabhavato jagad-aṇḍa-koṭi koṭiṣv aṣeṣa-vasudhādi (Bs. 5.40). In each brahmāṇḍa there are unlimited number of planets and stars, aśeṣa-vasudha. And vibhūti-bhinnam. And each planet is differently situated. Each planet has got specific atmosphere, specific arrangement. Just like the sun globe. The sun globe is fiery. The moon, moon planet, it is very pleasing. There is also fire, but it is surrounded by cold atmosphere; therefore it is very pleasing. So vibhūti-bhinnam. Each every planet has got different atmosphere. And each and every planet, there are different kinds of living entities just suitable for that atmosphere. Don't think that in the sun planet there is no life. There is also life. If there is no life, how Kṛṣṇa says that imaṁ vivasvate yogaṁ proktavān aham avyayam (BG 4.1)? Vivasvate means... The king of sun planet is known as Vivasvān. So Kṛṣṇa spoke with him, so how you can say there is no life? This is material world, many millions of universes. In another place it is said, yasyaika-niśvasita-kālam athāvalambya jīvanti loma-bilajā jagad-aṇḍa-nāthāḥ (Bs. 5.48).