O Poder Meta-humano - Como desenvolver suas habilidades transcender a realidade e ir alem dos limites do cotidiano (Em Portugues do Brasil)

I'm curious about the personal experiences or philosophies that led him to explore this concept of limitless human potential.

I've tried some of the practices but wondered if others experienced real change or found certain methods challenging.

It seemed more rooted in philosophy and spirituality—does that make it more applicable to certain readers than others?