When Moses stood at the burning bush,  (Exodus 3:5), YHWH told him to remove his shoes, because he was standing on holy ground. If weather, terrain, and social setting permit, going barefoot can be a great way to make a fast connection with the earth (even indoors but all the better if you can do it outside on the ground). Take some time to feel the textures and temperatures on your feet and sense your connection with the earth.