In the PIE language, Perkwu meant oak, and Perku meant life-soul. Perkwunos was the storm deity, son of Dyeus and Dheghom, Sky Father and Earth Mother.
Oak trees are known for attracting lightning, which itself gives off an electromagnetic pulse when it strikes.
The word matter is derived from the Latin word materia which itself is derived from mater, which means mother.
Materia initially referred to the trunk of a tree.
