I believe the answer will be the medieval period
The kind of painting is this is a Zen painting. This kind of
painting is made by monks and nuns succeeding the track of Zen Buddhism in
Japan. An imperative component of Zen art is that the character and mystical
force of the disciple is conveyed into the canvas by the focus of the artist at
the time the work was brushed. These paintings reverberate with the forte of
their understanding and involvement, proposing generations of viewers’ works
with perceptive proximity.
