Short answer: There seem to be two main answers; both are delusions (dull or smart) shape. The first is to place the grave at a depth of 6 feet to prevent "premature" burial of the dead wake up (Oh, my bad, I think you are dead). The second reason is simply due to health problems (Little Timmy, what did you dig. Long answer: Zombies will walk again. Please look at the Egyptian. Then the mummy fills all belongings, usually food, drinks, and lots of cats. Ok, they go to the party, oh ... I mean after life.
The deceased should be filled as soon as possible. The body was wrapped in seven layers of white sheets. The grave was dug up to a depth of 6 feet, and the body was placed on the head towards Mecca. The cemetery is usually located near the water source. This position also strengthens the relationship between the deceased and the livelihood. When people come to water, they have the opportunity to visit the cemetery. The ceremony took place 15 and 40 days after the burial. On day 15, the family of the deceased gathered to eat dating and candy and stated their advice. On the 40th day, they slaughtered sheep and goats and left food and water in the grave. (Hobbes, p. 65) This is merely an iconic one, unlike ancient Egyptians who sacrificed God to secure safety through underworld.
Milfoil did not cause extensive problems in all established waters. In lakes with low water transparency, if any, the mill should be less than 6 feet deep. Alfalfa and aquatic plants tend to grow less in lake areas where bottom fertility of sandy soil is low, in general. Milfoil may cause a one year problem at the lake, but next year will not cause problems. This seems to be primarily due to the weather, which may change the environmental conditions of the lake, especially the transparency, temperature and depth of the water from year to year. This in turn leads to a drastic change in the quantity of aquatic plants.
During his career, Houdini showed three changes in at least one burial event. For the first time in 1915, it was near Santa Ana, California. Houdini was buried in a hole 6 feet deep without a coffin. When he tried to dig a surface and ask for help, he felt exhausted and panicked. When his hand finally broke the surface, he lost consciousness and had to be pulled out of the grave by his assistant. Hudini wrote in his diary that "escape is" extremely dangerous "and" the weight of the earth is being killed. "