It's All About Fighting Spirit and I'm Cultivating Immortality

We agreed to fight together, but why did you survive the catastrophe? When I woke up, I was transported to a foreign land where fighting spirit reigned supreme. While others were desperately cultivating fighting spirit, I silently aroused the spiritual energy of heaven and earth. He was ridiculed by everyone as a useless practitioner, and even his fiancée was humiliated by breaking off the engagement in public. Until one day when a powerful enemy invaded the territory, a thunderbolt fell from the palm of my hand, and the whole audience was shocked... Only then did they realize in horror - what I cultivated seems to be an immortal? !