All created beings are unmanifest in their beginning, manifest in their interim state and unmanifest again when they are annihilated. So what need is there for lamentation?
One who is able to withdraw his senses from sense objects, as the tortoise draws his limbs within the shell, is to be understood as truly situated in knowledge.
You should discover your own reality and not thwart yourself. For you have the self as your only friend, or as your only enemy.
For the soul there is neither birth nor death at any time. He has not come into being, does not come into being, and will not come into being. He is unborn, eternal, ever-existing and primeval. He is not slain when the body is slain.
No work stains an individual who is pure, who is in harmony, who is master of his life, whose soul is one with the soul of all.
This is true knowledge: to seek the Self as the true end of wisdom always. To seek anything else is ignorance.
To whom praise and blame are equal, who is silent, content with every fortune, home-renouncing, steadfast in mind, and worships Me, that person is dear to me.
By this attitude of complete renunciation you shall be freed from bondage, good and bad, of karma. You shall be liberated, and come to Me.
Only by devotional service is the Supreme Truth, Krishna, pleased, and by His inconceivable energy. He can reveal Himself to the heart of the pure devotee.

