Brahman alone is this immortal—in front, Brahman; behind, Brahman; to the right and the left. Below and above it stretches. Brahman alone is all this universe, the highest.
We have been given this human life to understand the all-pervading, omnipresent God. This knowledge can only be given by someone who has themselves realized God. Life becomes truly happy only after meeting such a God-realized person.
God is the enduring one, and everything else is transient.
No one can come unto Me, except the Father which hath sent Me draw him.