Material energy is very strong, very powerful. You can know that. If there is a strong, a strong storm immediately, so many houses, so many trees and plants can be immediately uprooted. Material nature. If there is big storm in the ocean, it can inundate many cities, many towns. Material energy is very, very strong. That is stated, daivī hy eṣā guṇamayī mama māyā duratyayā (BG 7.14). So we are under the control of the material nature.
Here is a scientist. He knows how much we are controlled by the material nature. So material nature is also Kṛṣṇa. Material nature... Because material nature is the energy of Kṛṣṇa... Just like this light. This light is distributing illumination. So this illumination is also light. The illumination is coming from the light. Therefore, so far illumination is concerned, there is in the lamp as well as in the illumination. So energy is not different from the energetic.