Unfortunately, "vibrations," like "inner child" (a potent archetype and subpersonality), has, for many, taken on the cheesy, Celestine taint of New Age cliché. But looking at the world in terms of vibration is as valid as looking at it from the point of view of mathematical relationships, systems analysis, and energetic transaction. Physics tells us that there are no solid objects, that everything is vibratory. Einstein said that solid matter is just a special case of energy.Read it all at Reality Sandwich
Everything we think is solid is actually patterned energy, the stuff that dreams are made of. Even black holes don't sit still and can spin at 84% of the speed of light.
Everything seems to be vibratory, and obviously there are vibrations of varying frequencies. I vibrate, therefore I am, says the cosmos.