According to the Priestly source, blood, the blood that courses through one's veins, represents the life force.

根据祭司资料，血,在人血管中流动，代表着生命的力量。

耶鲁公开课 - 旧约导论课程节选

It turns out that blood within the umbilical cord is also a rich source of stem cells and again specific to a particular patient.

研究发现脐带血中,也有丰富的干细胞资源,并且对一些特殊的病人有特别的意义

耶鲁公开课 - 生物医学工程探索课程节选