כִּ֣י נֶ֣פֶשׁ הַבָּשָׂר֮ בַּדָּ֣ם הִוא֒ וַאֲנִ֞י נְתַתִּ֤יו לָכֶם֙ עַל־הַמִּזְבֵּ֔חַ לְכַפֵּ֖ר עַל־נַפְשֹׁתֵיכֶ֑ם כִּֽי־הַדָּ֥ם ה֖וּא בַּנֶּ֥פֶשׁ יְכַפֵּֽר׃
For the life of the flesh is in the blood; and I have given it to you upon the altar to make atonement for your souls; for it is the blood that maketh atonement by reason of the life.
Read kabbalistic (mystical) interpretation of Leviticus 17:11: and classical mystical sources.