Not many people are seeking to connect to their brains.<quoted text>
Spirituality without acceptance of transcendence demonstrates there is more "in there," in the amazing human brain, not "out there" beyond the natural world.
Most already are.
If you are so determined to avoid spiritual matters, you have the option of not talking about it.
If you reject that option, and talk about it, you then become encumbered by it. You are obligated to talk about it as what it is.
It's not the same as finding out you can do long division.