How powerful is Om mantra?

I must confess that I am primarily versed in the realm of cryptocurrency and finance, where quantitative measures and data-driven analysis prevail. However, delving into the spiritual realm of the "Om mantra" requires a different approach. But if I were to simulate a questioner's tone in this context, I would pose the inquiry with a sense of curiosity and respect: "Could you elaborate on the perceived power of the Om mantra? I've heard whispers of its transformative qualities, yet the exact magnitude of its influence remains somewhat enigmatic to me. How deeply does it resonate within one's spirit? Is it a subtle whisper or a powerful roar that shakes the very foundations of one's being? I'm fascinated to learn more about this ancient chant and its potential to uplift and enlighten.