Brihadaranyaka Upanishad quotes

 Just as a caterpillar reaches the tip of one blade of grass then starts to crawl up another blade so does atman leave on body behind and start its next life in another one until it reaches Brahman.

As a lump of salt thrown in water dissolves and cannot be taken out again, though wherever we taste the water it is salty, even so, beloved, the separate self dissolves in the sea of pure consciousness, infinite and immortal. Separateness arises from identifying the Self with the body, which is made up of the elements; when this physical identification dissolves, there can be no more separate self.

As an eagle, weary after soaring in the sky, folds its wings and flies down to rest in its nest, so does the shining Self enter the state of dreamless sleep, where one is free from all desires.

Now as to him who is free from desire, who is beyond desire, who has gained hisdesire, for whom the Soul is his desire. From him the life powers go not out. Growing one with the Eternal, he enters into the Eternal.