IDEOGRAPHING MIND 鐵笛倒吹 四十六

If you will mark your gate
what word will you use,
what for the door, what
for the window?
The gate knows quite well
what it is, as to door and window
and need no marking.

Even the fool knows
through each you
may enter the house,
but even the wise man
cannot tell you
how the house may enter you.

A reflection on case 46 of the Iron Flute Koans