(1) Open
I can see and others, too.
We know it well, what is true.
Although it is not perfect,
I will try my best to do.
(2) Blind
All but I can know it well.
That's what I want them to tell,
To improve my soul and mind.
I will get out of the shell.
(3) Hidden
I can see but others NOT.
This is charming secret spot.
Which must not be never shown.
I will give it thanks a lot.
(4) Unknown
No one can see it at all.
Even it is very small,
The great fruit will come to me.
I will not fail catching all.