What can you see?
between dawn and twilight.
Before dawn and twilight.
Birds awaken and fly to the east.
Later, they turn back to the east.
In the sky, they fly happily.
while flying, 
birds sing a song merrily.

What can you hear?
Between pale evening and dusk.
Between pale evening and dusk.
Birds are coming back to nest.
They lay down and sleep on the nest.
On the tree branches and ceiling, and in the ***.
while it is a day night.

What can you feel?
Between life and death.
Between life and death.

There's breathing in and out.
It's either enjoyable or suffering.
And men have to be cautious.
For death, there is no alerting.