The fundamental principle of hokku is that it is about Nature and the place of humans as a part of, not apart from, Nature — set in the context of the seasons. Here is a hokku by Shōha emphasizing the human part of that. It is particularly appropriate to the last few weeks of weather where I am:
The boy frets;
This verse is not about a boy or a kite or the rain. It is about a-boy-and-a-kite-and-the-rain, all as one thing. Full of impatient and frustrated hope, the poor little guy waits and waits for the rain to stop so he may fly his kite. And his parents feel his pain, the suffering of childhood.
Without the rain there would be no hokku; without the kite there would be no hokku; and without the child there would be no hokku. It takes them all together to present us with this verse, a verse that shows us “humans as a part of, not apart from, Nature.”
In the water jug
A frog is floating;
This is a very watery, Yin verse — water in the jug, water in the rain, and a watery frog. It makes one think of Robert Louis Stevenson’s verse,
The rain is raining all around,
It falls on field and tree,
It rains on the umbrellas here,
And on the ships at sea.