carve, engrave, cut out, sculpt
瑑 centers on shaping a material by removing parts: carving, engraving, cutting out, or sculpting a design into a surface.
瑑 combines 王 (jade) with 彖, which likely contributes the sound and relates to carving or engraving on jade or precious stone.
The left side 王 (jade) suggests a precious stone, and the right side 彖 looks like a tool cutting into a surface. Picture a craftsman carving intricate patterns into a jade tablet.
For テン, imagine the number ten (テン) carved into a jade stone: ten -> テン, and each stroke is carefully engraved.