Explanation of Man"s life is nothing but one day

 Explain! Man"s life is nothing but one day

We will explain by equations
There are two Clocks, Big and Small,
Big is the Cosmic Clock,
And small is the Annual Clock.

In the Annual Clock
Daily motion of Sun
Is one degree per day
So 1 degree = 1 day.

In the Cosmic Clock
It was discovered
That Equinoxes precede
One degree, every 72 years.

So 1 degree = 72 years.
{The Precession of the Equinoxes}
Human Life Span is estimated
As seventy odd years.
72 years = Human Life Span

As 72 years = 1 degree in the Cosmic Clock,
And 1 degree= 1 day in the Annual Clock,
By  combining both equations,
We get Human Life Span =1 day.