Blood as Life and as Offering

Blood carries a symbolic weight in religious thought that few other bodily substances match, tied above all to the observation, available to any culture, that its loss ends life. That observation gives blood a double character across traditions: it is treated as the seat or carrier of vitality itself, and simultaneously as the material of the most serious offerings a worshipper can make, precisely because it is life given up rather than merely set aside.

Blood sacrifice, whether of animals or, in some historical and mythic contexts, of the worshipper's own blood drawn ritually rather than lethally, appears across an enormous range of traditions, from the Hebrew Bible's detailed sacrificial law to Aztec bloodletting rites understood as sustaining the sun and the order of the cosmos. The goddess Kali's iconography and cult in Hindu tradition carry an especially direct blood association, tied to her myth of drinking the blood of the demon Raktabija to prevent his self-replication and, historically, to blood offerings made at temples including Kalighat in Kolkata.