The impermanence of life period

What is meant by the impermanence of life period? As we all know in this modern world there are laws of the indestructibility of matter and of the conservation of energy. Buddhism acknowledges all these laws in this noumenal world. It is impossible also that there should exist a thing which does not change. In the “stanzas of the Law” Buddha says the following sayings:

That which seems everlasting, will perish. That which is high will be laid low. Where meeting is parting shall be. Where birth is death will come.

There is more of less similar stanza in the Chinese which goes like this, “Not in the sky neither in the depths of the ocean nor having entered the caverns of the mountain, nay, such a place is not to be found in the world where a man might dwell without being overpowered by death.According to Buddhism we keep on changing from birth to old age and death the end of life is one of the prime miseries.

Idealist school of Buddhist Philosophy says, “All things are produced by the combination of causes and conditions and have no independent noumenon of their own. The body of a living being consists of the combinations of the four great elements, earth, water, fire and air; and when this combination is resolved into the four component elements dissolution ensues. This is called the impermanence of a composite entity.