You are dust, and you will return to dust.

Dust to dust, soil to soil, let the dead rest in peace and let the living regain their liberation.

The original text is: dust to dust, soil to soil; In the certain hope of resurrection to eternal life ...

From the bible.

The human body is made up of elements, so is everything. When people die, whether they are cremated or buried, they will melt into the soil. After being absorbed by plants, it becomes a part of plants, and then it is eaten by animals and becomes a part of people. Then die again and turn to dust again. The soul has weight. Now it's said to be 2 1 gram. Different souls have different weights. The soul comes from nature, belongs to nature like a corpse after death, and then condenses into a soul at the time of conception. Dissipate again after death. This is dust to dust, and dirt to dirt.