In this painting, a river barge called Kawahirata is depicted.
The barge driver is going home on the Onga River after unloading the coal he carried.
Barge drivers used to smile when the north wind began to blow, because they could sail with the wind.
They pulled down their sail and laid down their mast when they saw the railings of bridges coming near.
They left their barge to the mercy of the wind when the barge was not loaded with coal.
They were also good at predicting the weather including its seasonal changes.