grandegyptianmuseum:

The Weighing of the Heart Ceremony

The Two Ma'at in the Judgment Hall weigh the heart of the deceased against a statue of Ma'at.
Ma'at was the symbol of the cosmic order and it was believed that there were two of them: one for the living and one for the dead. Vignette from a papyrus depicting the Weighing the Heart of the deceased in a balance.

The baboon is one form of Thoth, inventor of writing and secretary to the gods, whose other form is as an ibis-headed man. He is usually associated with this scene in order to register the outcome of the weigh in. Above the balance is a block of written hieroglyphs extract from the spell 125 of the Book of the dead.
Detail from a funerary papyrus dates to the 18th Dynasty (ca. 1550-1292 BC) of the New Kingdom of Egypt. Now in the Louvre.