I can grace a king or a farmer. My way is earthy and yet can climb high mountains, plumb the depths of the sea, or fly through the air with any human companion. Those who live with me in their hearts will be exalted beyond measure, yet never claim their due in this life or sound their own trumpets. I am a fundament of virtue, the boon of free men, and grant likeness to Word Incarnate. What am I?