Brief Summary about Mummification in Egyptian Culture
Every person in the area knows the deceased’s announcement of death and starts preparing for the ceremony.
Preserving the body has a horrible smell so the priests left the tents.
The brain is not important so they removed it.
They even removed the internal organs in each of the canopic jars (Horus’ four sons protected these jars).
Drying out the body in the sun for forty days after they put natron in the body and stuffed the body.
Mummifies the body with linen and the priest prays for each wrapping.
Crying more is equivalent of supports from the deceased’s family and friends.
Priests performed and the deceased’s performed spells so the deceased can move onto the afterlife with their belongings and the Book of the Dead (spells).
Weighing of the Heart will testify to the deceased’s heart balance with the Feather of Truth. If not balanced, Ammit will devour the heart.
There is a scene in the movie Gods of Egypt where the Scale of Justice affects the deceased’s heart to go afterlife. You will be seeing a twist on the riches provided by the deceased instead of their heart versus the Feather of Truth. Followed by the “Gods of Egypt: All Anubis Scenes” link to a video: https://www.youtube.com/watch?v=tzDUxLThjVc
The picture above describes in the link https://www.crystalinks.com/egyptafterlife.html Look at the section titled "The Funerary Scene" where the scribe is judged and his heart put in the scale and meets Osiris, Isis, and Nephthys to the underworld. That is how the Ancient Egyptians practiced mummification and the heart is important to the underworld.