It’s like giving aura to the work.
The ancients believed that ink added with wine would smell more fragrant, because wine is fragrant, and this fragrance can also prevent corrosion and moths. Liquor is made of grain and takes the essence of heaven and earth. The calligraphy works written in this way seem to have aura and a little more fireworks.
Adding wine to the ink will add some brightness to the ink color. Because there is ethanol in the wine, it is acidic, and the ink is also acidic. It is actually the ethanol in the alcohol that activates the acidic vitality of the ink and color.