I can write (and have written) hundreds of blog posts for you about diet, exercise, and spirituality.
I can teach (and have taught) tons of classes on these topics.
But for all that I can speak, write, and show, at the end of the day, there’s only so much you can absorb in an educational setting. You can learn a lot, but it will never be complete knowledge until you actually try it for yourself.
Complete knowledge, or, we might say ‘wisdom’, comes from practice.
So, don’t believe a word I say.
Try it for yourself and see.