When we invite the Holy Ghost to fill our minds with light and knowledge, He "quickens" us, that is to say, enlightens and enlivens the inner man or woman. As a result we notice a measurable difference in our soul. We feel strengthened, filled with peace and joy. We possess spiritual energy and enthusiasm, both of which enhance our natural abilities. We can accomplish more than we otherwise could do on our own. We yearn to become a holier person.