Each tree and plant receives warm sunlight in its material body. When we have twigs, broken wood, and bits and pieces, we can light them up and release the sunshine from the plant material.
It’s so fun and warm and beautiful!
Then we can put the pot ashes back out into the garden.
According to Wikipedia,
The English name for the element potassium comes from the word potash, which refers to an early method of extracting various potassium salts: placing in a pot the ash of burnt wood or tree leaves, adding water, heating, and evaporating the solution. When Humphry Davy first isolated the pure element using electrolysis in 1807, he named it potassium, which he derived from the word potash.
The symbol K stems from kali, itself from the root word alkali, which in turn comes from Arabic: القَلْيَه al-qalyah 'plant ashes.'