直插式

• 十(ten; vertical)ASSOCIATIVE
• 目(eye)RADICAL
• 一(one; straight line)ASSOCIATIVE

An eye looking straight down one line without deviation is what makes something upright and straightforward.

• 扌(hand)RADICAL
• 臿(shovel; spade)PHONETIC

Using your hand to grip a plum and push it down into the earth is the action of inserting or wedging something in.

• 弋(wooden stake; bow (for arrows))RADICAL
• 工(work; boatman)ASSOCIATIVE

Using wooden stakes and tools together creates a standard template or ritual form.