John started thinking he felt she's saying the truth. He has always been so trusted in religion. Even though the holy water had nothing to do with his powers he used to believe it gives him power. In truth it was just his energy being power's, John was born with it.
As John reflected on the guru's words, a realization dawned upon him, an awakening to the truth that had been obscured by the trappings of religious beliefs ingrained in his upbringing.
He recalled the rituals and symbols he had once revered, the holy water, the prayers, the symbols of faith. These had been sources of comfort and strength, pillars of his identity. Yet, now he saw them through a new lens, a lens that revealed the innate power and energy within him, independent of external symbols or religious doctrines.
The guru's teachings illuminated the essence of John's abilities, they were not bestowed by rituals or symbols but were inherent to his being, a part of his very nature from birth.