In the recent history of mountaineering, the aura of Patrick Bérhault has no equal. No other high-level mountaineer will have, in the alpine environment, so much enthusiasm, and dug in his wake such energy nourished by superlatives. "Extra-terrestrial", "Humanissime", "the indestructible", were regularly read about him in the alpine press. All those who met him can testify to this very special light that crystallized around him. And all the others, all the anonymous enthusiasts received from what he gave off, on television, on stage in his lectures, through his films, an unparalleled energy. The Berhault force.