What does the sutra from the Chandogya Upanishad say about the knower's perception of death, disease, and sorrow?

According to Osho, the Chandogya Upanishad declares that for the true knower, where the ego has dissolved, death, disease, and sorrow have no reality. Only the 'I' dies; what is false collapses like a house of cards. When the ego-lamp is extinguished (nirvana), the moonlight of the real enters; in egoless awareness, suffering and mortality are seen as dreams, not your being.