They didn´t need anything.
They took clothes, gold, their animals, and anything else that they will need in the afterlife.
They needed the items that they used in their first lives. They needed the items that they used in their first lives to take to the afterlife.
I guess you would need basic items if you have a horse. A feed bag, curry brush, etc. are good horse items for horse people.
They considered the afterlife a place where they would need to have these items.
The egyptians beileved in afterlife. Afterlife is when after an important person dies and they would enter a new dimension or world. Items were placed in the tomb to comfort the person in afterlife. Food was placed there so the dead guy would feel comfortable in afterlife. Also furniture was placed there too.
The pharaohs would need these items on their journeys in the afterlife. It's a strange concept, but if you accept that the spirit of a dead person can live on after death, then you can also believe that the treasure that is buried or entombed with a dead person will contribute the spritual essence of treasure, to enrich that person's spirit. Egyptian Pharaohs thought that they could take it with them.The pharaohs would need these items on their journeys in the afterlife.
Because they believed that they need all of their belongings in the afterlife. . Some of the everyday items that were included in tombs were necklaces, bowls, jars, dice, combs, and baskets. One tomb of a pharaoh was found that was filled with many small, wooden, toy-like boats. These boats were meant to become real once the Ka left, and help the Pharaoh get through the afterlife. They had everything from pots of fruit and grain, buckets full of gold.Sometimes they even included a popular board game known as senet. Theywanted their loved ones to have all that they wanted in the afterlife. Jewelry, makeup, and clothing were placed in tombs so they would have something to wear in the afterlife. If you were wealthy, you could put jewelry in your tomb. They included these everyday items because the Egyptians believed that the dead would need the items in the afterlife. They believed that these items would go with them when they died.
The Egyptians put special items in tomb like food, gold, and water is because they were needed in the afterlife. They put canopic jars in tombs because they held th organs of the body because the body would need them in the afterlife to live.
This is a very uneasy topic. There are people who have had contact to the afterlife or a form of after life. There are people who wish that there could be an afterlife, but don't believe in it. There are people who believe in a religion, and people who only believe in religion so they have something to emotionally attach themselves to.
They did so because the Egyptians believed that you go to an Afterlife when you die, afterlife was like this life, and you would need your stuff to go with you. They buried items with the mummies, too. Things like gold, jewelry, even furniture! You would be able to have all that in the afterlife!
Im not sure what specific items you are looking for, but everything a mummy would need in the afterlife was buried with them, sometimes even their pets.
Maybe its a fear of death and a need to believe in the afterlife or they have no life at all.