Oh I agree, the secret is bullshit. I actually don't like all the new age crap. But I do believe that there is a system of spirit energy that needs to be checked and accounted for. I am big in to yoga and chakra is part of it. This doesn't mean you get your desires and wishes be granted. What it does is, it allows you to operate at the best of your ability by being grounded.
That being said, the best of your ability is something that depends on the individual. Before yoga, I had all kinds of anxiety and intrusive thinking that did not allow me to operate in a productive manner. With meditation, I can learn, recovery from physical exertion to an extent and enjoy better digestion to an extent. It is not a magical spell that lets everything be perfect but it does allow life to not be overwhelming as it would be if someone is under a panic attack.
But who knows, maybe because I am a head case, the power of chakra, meditation and mantra took me to a modest level. Perhaps someone else with a better starting point can climb to a greater level of human capabilities.