The superior form of energy of the Personality of Godhead is described in the Bhagavad-gītā as parā prakṛti. The scientists have recently discovered that there are two forms of perishable matter, but the Bhagavad-gītā describes most perfectly the concept of matter and antimatter in terms of two forms of energy. Matter is an energy which creates the material world, and the same energy, in its superior form, also creates the anti-material (transcendental) world. The living entities belong to the category of superior energy. The inferior energy, or material energy, is called aparā prakṛti. In the Bhagavad-gītā the creative energy is thus presented in two forms, namely aparā and parā prakṛti.
Matter itself has no creative power. When it is manipulated by the living energy, material things are produced. Matter in its crude form is therefore the latent energy of the Supreme Being. Whenever we think of energy, it is natural that we think of the source of energy. For example, when we think of electrical energy, we simultaneously think of the powerhouse where it is generated. Energy is not self-sufficient. It is under the control of a superior living being. For example, fire is the source of two other energies, namely light and heat. Light and heat have no independent existence outside of fire. Similarly, the inferior and superior energies are derived from a source, which one may call by any name. That source of energy must be a living being with full sense of everything. That supreme living being is the Personality of Godhead, Śrī Kṛṣṇa, or the all-attractive living being.
In the Vedas the supreme living being, or the Absolute Truth, is called Bhagavān—the opulent one, the living being who is the fountainhead of all energies. The discovery of the two forms of limited energies by the modern scientists is just the beginning of the progress of science. Now they must go further to discover the source of the two particles or atoms which they term material and anti-material.