seem lost in thought

rock

Suck the lifeblood of

All sorts of diseases

Seven or eight handed

Sentiment and intention

lit. to use one's bent arm as a pillow (idiom)​, fig. content with simple things

frost and moon

Every moment is of value.

Have a niche in history

A thousand gold coins

Divergence disambiguation

Be satisfied with

weep blood and knock one's head on the ground

live a perfect life(return intact what one was born with)

Latent scales

A leaden knife can cut.

Implication

talk one's head off

make up deficiency at one place by drawing upon the surplus at the other