Vibration
Everything is vibration. There is nothing but vibration. If we think that an article is stationary, then it is merely vibrating at one particular rate. If a thing is moving, then it is vibrating at a faster rate. And even if a thing is dead it is still vibrating and actually breaking up as The body decomposes into different vibrations.
We feel a thing, no matter whether it is stationary or moving. We touch it and we feel it because it has a certain vibration which can be received and interpreted by one of our sensory organs attuned to that type of frequency, in other words, we are sensitive in The sense of touch. Another article is vibrating much more rapidly. We cannot feel it with our fingers, but our ears pick up that vibration and we call it sound. It is vibrating in that range of frequencies which a higher-receiving node can receive as a high sound, an intermediate sound, or a low sound.
Beyond that there is a range of frequencies which are much higher, we cannot touch them, we cannot hear them, but even more sensitive sensory nodes termed eyes can receive those frequencies or vibrations and resolve them inside our brain into a definite pattern and so we get a picture of what The thing is. 