The Four Sons of Horus were an integral part of ancient Egyptian religion – usually in a funerary aspect.
During the process of mummification 𓋴𓂧𓐍𓅱𓐎 (which took about 70 𓎆𓎆𓎆𓎆𓎆𓎆𓎆 days), the embalmers removed the internal organs 𓇋𓂧𓂋𓄹𓏦 and placed them in Canopic Jars. Each of the four 𓏽 jars was for one of the major internal organs 𓇋𓂧𓂋𓄹𓏦 and each jar had a different head which represented one of the four Sons of Horus.
Qebehsenuef 𓏁𓌢𓌢𓌢𓆑𓀭 (falcon head) held/protected the intestines 𓈖𓊪𓅮𓄿𓏲𓏼.
Hapi 𓎛𓐑𓊪𓇌𓀭 (baboon head) held/protected the lungs 𓊃𓌴𓄥𓅱𓄺
Duamutef 𓇼𓅐𓏏𓆑𓀭 (jackal head) held/protected the stomach 𓂋𓄣𓏻
Imseti 𓇋𓅓𓊃𓍿𓀭 (human head) held/protected the liver 𓅓𓊃𓏏𓄹𓏸𓏸𓏸