This house is material. It is made of wood, stone. So we are giving up all material connection. Then why shall we live in this house? This is material. So prapañcikata. Prapañcikā means considering something as material. Hari-sambandhi-vastunaḥ. Vastu means substance or thing which has connection with Hari. This stone, wood, air, fire, water—five gross elements—it has connection with Kṛṣṇa. Kṛṣṇa says in the Bhagavad-gītā, bhūmir āpo 'nalo vayuḥ khaṁ mano buddhir eva ca, bhinnā me prakṛtir aṣṭadhā (BG 7.4). These eight kinds of material elements, five gross and three subtle, namely the earth, water, air, fire, sky—these are gross elements—and the subtle elements—mind, intelligence, and ego . . . so these are subtle elements. Mind is also material, and intelligence is also material, and ego, the false ego, that "I am this material body," that is also material. And above this, that is spiritual. Above this, the soul, the spirit, that is spiritual.
Apareyam itas tu viddhi me prakṛtiṁ parām (BG 7.5). Kṛṣṇa says, "These gross and subtle elements, they are inferior energy. That is My energy, but that is inferior energy." Itas tu . . . apareyam itas tu viddhi prakṛtiṁ me parām: "There is another, superior energy." What is that superior energy? Jīva-bhūta, the living entity. Jīva-bhūtāṁ yayedaṁ dhāryate jagat (BG 7.5). That is superior, because this superior energy, living entity, he is trying to utilize this inferior material energy for his sense gratification. Dhāryate jagat. Whole world is going on just like a motorcar. It is combination of gross material—iron, steel, copper, glass, like that, and cotton and fiber.