a type of short form zen poetry that's the same as haiku (ie., 5-7-5 syl per line) but which has reference to altered states of consciousness.
When the doors of perception are thrown wide or torn off their fasteners; short verse constructs such as highku can capture moments, realizations and altered glimpses of other states of consciousness.
A standard haiku, only written when high.
The great octopus,
Strangles with his tentacles,
And shows no mercy.