In plain words
The world is not one thing and divinity another. About this very oneness the Praśnopaniṣad has been giving its teachings so well.
Every thing of matter has a supreme principle. Without the supreme principle as its support, matter is not seen. For a living being without prāṇa, existence is nothing. In just the same way, matter without the supreme principle is useless. The supreme principle is the root. Matter is the gross. The supreme principle is the support. Matter is what is supported. When we examine this with physical sight, the two appear opposed to each other. But when we look with the sight of the true principle, a living being without prāṇa, a supported thing without its support, consciousness without the inert, or the inert without consciousness: none of these is to be found in the world. Only through prāṇa does the living being show itself. In the living being too, prāṇa dwells. This very thing, in Vedic science and in modern science, matter and energy. It has been bringing the two into harmony. The Praśnopaniṣad has been explaining the truth that the rasa nature of Śiva-Śakti too is joined with divinity, which is one. So between science and philosophy there is not the slightest difference to be seen. We think that physical science is concerned only with matter. We think that philosophy is joined with the supreme principle. The supreme principle and matter, the two of them, are inseparably related; they rest on each other. To proclaim such oneness is the very power of the Upaniṣads. But unfortunately people today think that all the Upaniṣads teach only the supreme principle and have no connection with matter. They mistakenly believe too that the spiritual means only that which has no connection with the physical world. They go on believing that the physical and the spiritual have no connection at all. This is a great mistake. One is the support. The second is what is supported. One is prāṇa; the second is the living being. The harmony of the consciousness of these two is itself the true world. To forget this world and believe in divinity: that is only a narrow idea. We must develop the faith that the world and the divine power are closely related. Without this world we cannot understand a single thing. Without the world we cannot recognise any truth. For the two we think of as true and as false, the world itself is the root cause. If we say we are achieving any single victory apart from the world, that is simply unproven.