How was the word tomb curtain mu created?

Chinese characters are characterized by ideograms.

Six ways to create characters: pictograms, meanings, meanings, phonetic sounds, transliterations, and borrowings

The evolution of Chinese characters: oracle bone inscriptions → bronze inscriptions → seal script → official script → regular script, cursive script

"Shuowen Jiezi" says:

Tomb: Qiuye. No sound from the soil.

The curtain is called the curtain when it is placed on top, and it is also called the curtain when it is covered with the food table. Silence from the towel.

Mu: Xi Ye, follow your heart and don’t say anything.

That is, these three characters are all pictophonetic characters, and they are created using the pictophonetic method. Among them, Mo is the sound symbol (phonetic paraphrase), earth, scarf, and heart are all shape symbols (form paraphrase).

(Traditional Chinese characters basically retain the characters since the seal script (Xiaozhuan, a script that was implemented after Qin unified the Six Kingdoms), but there are differences in the writing methods of gestures and radicals. And the simplified characters Most of them adopt some cursive writing methods and widely used variant characters, and are finally determined as standard characters.)