Life and death are two sides of the same coin. Life is a state of being, while death is the cessation of that state. The two are inseparable. If you are alive, you will continue to exist. But if you die, your existence will cease. This is what is meant by the saying, "There is no life and no death." The same is true for the Buddha's teachings. He taught that there is neither life nor death, and that all phenomena are impermanent. In other words, all things are subject to change, but they are not destroyed or destroyed by it. They simply cease to be. It is as if someone were to throw a stone into a pond and the stone would remain there forever. However, if that stone is thrown into the pond again, it will not be able to return to its original place. That is because it has lost its place in the water. Similarly, when a person dies, his or her body will no longer be there. There will be nothing left of it, just like a piece of wood that has been cut down to the size of a pebble. When the body is gone, the mind will also be gone. So, too, with the Dhamma. All phenomena, whether good or bad, will pass away and be reborn in another form or another world.
The Buddha taught, however, that this is not the end of things.