Before one goes through the gate
one may not be aware there is a gate
One may think there is a gate to go through
and look a long time for it
without finding it
One may find it and
it may not open
If it opens one may be through it
As one goes through it
one sees that the gate one went through
was the self that went through it
no one went through a gate
there was no gate to go through
no one ever found a gate
no one ever realized there was never a gate

"Although innumerable beings have been led to Nirvana no being has been led to Nirvana", §5, p. 85 - Knots (1970)