"blank space" is a term in painting, and "blank space" is an imaginative space for the viewer to feel confident. In the process of appreciation, he rubs his own mood into the picture scroll, swims alone in the ethereal atmosphere endowed by art, and makes the dust drift away, so that his mind will gallop freely in this splashing landscape.
Master artists often leave blank spaces. For example, in Mr. Qi Baishi's paintings, blank spaces are everywhere with intentions, ethereal and secluded, and the virtual and the real set each other off, showing the width of heaven and earth between square inches. "It is just where there is no ink, and the smoke waves are vast at present."
Masters of art are often masters of blank space, and the square inch of land also shows the width of heaven and earth. In the Southern Song Dynasty, Ma Yuan's "Alone Fishing in the Cold River", I only saw a picture in which a boat and a fisherman were fishing. There was not a trace of water in the whole picture, which made people feel that the smoke was vast and the whole picture was full of water. It gives people room for imagination, so the art of leaving blank space without victory has high aesthetic value, as the saying goes, "there is nothing here that wins."
The same is true of blank space in literature, which leaves readers some room for thinking and imagination.