Because the Soul is not made of matter, since it is spiritual, it cannot obey the laws of matter, it cannot be judged by the laws of matter.
Swami VivekanandaThis idea of body is a simple superstition. It is superstition that makes us happy or unhappy. It is superstition caused by ignorance that makes us feel heat and cold, pain and pleasure.
Swami VivekanandaThe body and mind are continually changing, and are, in fact, only names of series of changeful phenomena, like rivers whose waters are in a constant state of flux, yet presenting the appearance of unbroken streams. Every particle in this body is continually changing; no one has the same body for many minutes together, and yet we think of it as the same body.
Swami Vivekananda