Why was the deceased turned into a mummy in Egypt?

Take Ancient Egypt. The Egyptians believed that after the death of the body, the soul continues to be associated with it. If the body is mummified and near it the things that the deceased used during his life are left in the tomb, then the spirit can receive everything it needs – food and drink in the afterlife. This process was intended for the pharaoh and his entourage. Over time, the Egyptians came to believe that life after death also extended to the rest of the population of Egypt. But the high costs of embalming and mummification limited the poor Egyptians, and they did not carry out the full burial procedure. Shallow common graves were dug for the poor near the desert. The dry and hot climate also became the cause of natural mummification.