heart-blood

archaic literary uncountable

(literary, archaic) Blood needed for continued life; blood regarded as the seat of life; lifeblood.

Japanese Meaning

生命維持に必要な血液 / 生命の源として捉えられる血液 (命の根源) / 命そのものを象徴する血液、lifeblood

They guarded the ancient tree, believing its heart-blood sustained the village.

彼らは古い木を守り、その命の血が村を支えていると信じていた。

Sense（1）

(literary, archaic) Blood needed for continued life; blood regarded as the seat of life; lifeblood.