Here the way that blood sustains life is spoken of as if the blood were life itself. Alternate translation: "the blood sustains life" or "the blood causes animals and people to live" (See: [[rc://en/ta/man/translate/figs-metaphor]])
The word "life" here represents the blood that sustains life. Alternate translation: "You will not eat what sustains life with the meat" or "you will not eat the blood, which sustains life, with the meat" (See: [[rc://en/ta/man/translate/figs-metonymy]])