Nobody knows some things

At day time the sun gives light,

The moon rises in the sky at night,

A man sometimes become friends,

And 

Sometimes such man changes into a foe,

Somebody's life is full of joy, 

And,

Somebody's life is full of woe,

Some men become kind,

Some men become cruel,

A cuckoo is black so ?

The desert is full of sand,

The ocean is full of salty water,

What is purpose of a man who is born,

After death where a man would go,

I don't know,

Nobody knows,

Why it is shrouded,

It is a matter of great mystery,

Like, there are so many unknown things,

In this Earth, nobody knows,

If anybody tells that he can say,

This nothing but such a person is fraud.

The reason behind of saying that 

Such person is a fraud,

Everyone plays with mind,

So good faith is defined as

Act done with care and caution,

By a man when he believes that it is good.

No person is born to do crime,

But crime is done,

When some act caused him to get hurt,

Everyone plays with mind,

So crime is the act,

On basis of guilty mind.

By good mind, 

Sometimes victory would be in the heart

And 

then victory is in the mind

And 

then comes the soulful victory 

Of good over evil

Fear is conquered by confidence,

Some do not become cheater,

No matter how thirsty they are, 

Some would not be murderer.

In the midst of laughter,

People feel hardships,

Some takes the pains mind,

Thinking that sudden storm turn into wind,

Mountain can live alone with suffering,

Nobody knows the reason, 

Why to be perturbed,

Playing with mind as this is the nature.

While some takes into their heart,

And looses the smell happiness,

Feels only pain dropping tears.