Every birth is decided with an expiry, that is death.

In Vedic concepts, describes that a combination of Pantcha Bootha, i.e. air, water, sky, soil and fire are universally distributed elements, the composition of this is the only determination factor for any organism’s survival. Without this No organism is composed off: For example: Let us see the system of human being (a man / a women)

Human’s skin : A bullet proof coat of organs which is equivalent to soil (as per Vedic concept). After death of human, the skin and flesh is decomposed and mixed with the soil, Cant differentiate the soil and flesh on the buried area, they are mingled.

Human’s blood : A heme which is equivalent of water. All the elements of heme are basically the combination of water molecules.

Human’s hunger:    A vital force of survival (unavoidable thirst of life) which is equivalent to fire. Fires like sense in a stomach (hcl) initiate the survival of all mechanisms.

Human’s brain : Cognition and values which is equivalent to sky.

Human’s respiration:     The first pulse ( vayu naadi ) inspirtation and expiration which is equivalent to air. As thirumoolar said, the first pulse of survival is vayu.

Like this, all the naturally selected living organisms are based on the concept of pancha bootha , central concept of birth in this earth. Every living organism has possessed a reproductive mechanism. How?

Plants multiplies its generations by way of natural and artificial pollination

Fishes and moths lay eggs out of hormonal arousal and matting

Mammals multiply its generations by way of sex with an opposite. Ask yourself a question, that why such multiplication is necessary? Why the first evaluated organism is necessarily reproduce the other one as symmetrically same?

What for such natural causes are narrated and implemented?. While thinking about this, we are able to understand a fact that:

Every birth is decided with an expiry that is death. The born characters are to deplete or differentiate into a form of decay or an expiry to give a way for a new.