For bland words, it must be noted that it is not a pool of stagnant water. Everything is complementary, and the bland depths must have lively, aura, and old stamina, otherwise bland is equal to tediousness.
Great artists associate seemingly out-of-bounds things, and may inexplicably associate them. Of course, our vision is still limited to calligraphy, and the real calligrapher will associate the character with the various truths and moods of man, heaven and earth, nature, and life, and then form a feeling. Therefore, the ancients will have some feelings when they see the bearer arguing, paddling, snake fighting, etc., which is synaesthesia.