Vāsudevaḥ sarvam iti (BG 7.19) means Vāsudeva expands Himself in so many universes, so many planets, so many paraphernalia, still, He is in Goloka Vṛndāvana. That is stated in the Brahma-saṁhitā. Goloka eva nivasaty akhilātmā bhuto (Bs. 5.37). He is enjoying in His planet Goloka Vṛndāvana, and still, He is all-pervasive. Mayā tatam idaṁ sarvam jagat avyakta-mūrtinā (BG 9.4).
So when one comes to this understanding that Kṛṣṇa, Vāsudeva, He keeps Himself always intact although He is all-pervasive . . . vāsudevaḥ sarvam iti sa mahātmā sudurlabhaḥ. Mahātmā means great soul. Just like you have heard the name of Mahatma Gandhi in our country, but the definition of mahātmā in Bhagavad-gītā is different. A mahātmā is not a politician.
A mahātmā is not for the Indians and not for the Americans or any certain limited circle. Mahātmā is not like that. Of course, the Indian people awarded the title "Mahatma" Gandhi, but mahātmā means a different. Mahātmā's definition is given in the Bhagavad-gītā. There it is stated, mahātmānas tu māṁ pārtha daiviṁ prakṛtim āśritaḥ (BG 9.13). A mahātmā is under the shelter of the internal potency of God.
There are two kinds of potencies. That is also stated in the Bhagavad-gītā. You should read Bhagavad-gītā very carefully. You'll understand everything. Aparā and parā. These are stated. Bhūmir āpo 'nalo vāyuḥ khaṁ buddhir mano eva ca . . . bhinnā me prakṛtir aṣṭadhā (BG 7.4). The Lord says, material world, what is this material world? This material world is composition of earth, water, air, fire, ether. And . . . this is gross elements, gross ingredients.
But there are finer, subtle ingredients: mind, intelligence, ego. So these eight gross and fine elements which is the material world, that is expressed in the Bhagavad-gītā that bhinnā me prakṛti aṣṭadhā, "These eight kinds of prakṛti, nature, is my separated inferior energy." Apareyam, this is inferior. They are inferior.