A lot of people think that "Holiness" was only about the clothes you wear, and jumping and dancing, but holiness was about looking at life from a "self improvement" view. Holiness was about constantly improving one's self by drawing nearer to Yahweh, and shunning things of this world. That is why in the "holiness" movement, being filled with the Holy Ghost was essential. Being filled was the easiest way to accomplish the ultimate goal of self improvement. Allowing the spirit to rest, rule and abide made striving for a holy life so much easier. The spirit would convict the soul, which would be the guide for living Holy. That is why outward appearance mattered in this movement as well, it was because it was a sign that the Holy Ghost was within you enough to convict your soul enough that you would want to present your physical body as acceptable and holy unto Yahweh as well as your soul.