As aspiration this may appear to be a nice saying or we may appreciate it intuitively as truth. That is the first stage of appreciation. That is only subjective, it has no objective vitality.
One has no knowledge, one does not know it to be true although one may firmly believe it. Nevertheless, if one were to say to such a one, "Whoever knows the mystery of vibrations does not know it or through it know God," how would you disprove such a statement?
Suppose it were said, "God is above vibration, above all vibrations and so long as we deal with vibrations we are not contacting reality." A little meditation shows the need for greater growth and understanding. It would be evident that one could read a thousand aphorisms and have a billion beliefs and this would not bring one any nearer the truth except that it might put one in a proper receptive mood.
Then how is one to learn the mystery of vibrations? Mostly through the breath, by watching the breath, but also by watching the heart and learning through the heart's awakening. As this is a practice and not a study, a deeper explanation without application would not help much