Eknath Easwaran's Commentary
Everyone will agree that someday the body must grow old, weaken, and drop away, but not many will face the fact that it will happen to them. If we really believe we will die, we will do something about it.
If we live each day as if it were our last, we will be preparing for death. The man or woman who repeats the mantram regularly is actually preparing for death. The person who has become established in the mantram, who has made it an integral part of his or her consciousness, is prepared for death at all times.
When we realize fully that we are not this changing body but the changeless Self who dwells in the body, we conquer death here and now.