• 冂(outer boundary; fence)
• 入(enter; go in)

Inside a fence, something that has already gone in becomes what is enclosed.

• 巾(cloth; scarf)
• ？(hand spread wide (iconic mark))

Cloth spread wide by hand like a flat piece of fabric.

• 扌(hand)
• 立(upright; erect)

Using your hand to pull someone up straight is the meaning of the character 拉.

• 力(strength; power)
• 口(mouth; speech)

Adding uses strength and words to increase.

• 冂(outer boundary; fence)
• 入(enter; go in)

Inside a fence, something that has already gone in becomes what is enclosed.

• 巾(cloth; scarf)
• ？(hand spread wide (iconic mark))

Cloth spread wide by hand like a flat piece of fabric.

• 扌(hand)
• 立(upright; erect)

Using your hand to pull someone up straight is the meaning of the character 拉.

• 力(strength; power)
• 口(mouth; speech)

Adding uses strength and words to increase.