Analysis of Sometimes we laugh, sometimes we cry !

The whole night dream
Sometimes scream,
Sometimes laugh, and sometimes cry,
And then I opened my eye.
It is still night.
When will I see the daylight?
At last the day cames,
Alas, to spend with thee none has time.
This is the reality,
But have no certainty.
This is how time goes
And when the last breath comes nobody knows.
Alas! If we knew when will we die?
We would have planned the time,
And would never deny
And would never cross the line.
Is there any certainty where to rely?
The reality is that
Sometimes we laugh, and sometimes we cry.