The blot is the sacrificial offering at the centre of Norse and Germanic heathen practice, in which gifts, historically animals, food and drink, are given to the gods, the ancestors and the land-spirits, and a shared feast follows. The medieval sources that describe it, chiefly the Icelandic sagas and the histories of Snorri Sturluson, were written by Christians centuries after the conversion and looking back, so the accounts of blood sprinkled on altars and idols must be read as later, sometimes hostile or antiquarian, reconstructions rather than eyewitness liturgy.
Modern Heathenry (Asatru, Forn Sidr, and related movements), which took organised shape in the 1970s, revived the blot as a communal rite, generally in a form without animal slaughter: mead or ale is consecrated, offered to the gods, and shared, often paired with the toasting ritual of the sumbel. Practitioners are generally clear that the contemporary rite is a reconstruction built from fragmentary evidence rather than an unbroken inheritance, and the movement contains a real internal argument about how far to reconstruct and how much to invent, as well as a sharp dispute over ethnic and universalist readings of the tradition.