Brahman is the origin. It is the Eternal and Infinite. It is immutable. It is never born, nor does it grow. It knows no end. This is the description we know. This is the description of Mind's Infinity. Infinity is the opposite of Finite. Mind always sees anything as two opposites, light and darkness; pain and pleasure. Mind does not know, or cannot know light without darkness. Darkness cannot exist without light as it depends on it. There will be no shadow if light is not there. Shadow needs light for its existence. Light does not need shade or darkness for its existence.