When you place sulfur in your shoes and wear them, the powder stays with you throughout the day and its fumes evaporate within the vital, etheric, and astral dimensions. This is how we saturate our psychological aura, atmosphere, and mental stream with its cleansing energies. If you place sulfur in your shoes but don't wear them, then the fumes will not assist in purifying your mind and body. You can place sulfur powder in areas of your home that require cleansing too, so that your immediate environment becomes lighter and free from astral parasites.