The "foudre et l'éclair"
Plantard points out Boudets insistance on the "foudre et l'éclair" (lightning) in his preface to LVLC and also Boudets intentional mentions regarding the pierre de Trou.
The theme links lightening to Pierre de trou's and to their use and to the Gods. In fact "the Indo-European conception of the lightning god combines genetic and deadly connotations, this ithyphallic being and/or universal God-Father wielding a thundering and dazzling stone weapon (sledgehammer, axe, mallet or hammer) capable of both passing from life to death and bringing the dead back to life. Therein is apparently the key to the problem posed at the very beginning. To the extent that this weapon is the instrument of consecration and passage par excellence, it is predestined to become a symbol of this great passage that is death conceived as the birth of a life in to the afterlife. The multiple concordances mentioned above demonstrate the inherited character of such a conception, which has left, in European languages and traditions, traces of which the examples are so numerous that only a sample of them can be delivered here".