Essence is the infinite truth of being expressing itself as subtle form. Some call this soul. Just as pure white light that passes through a prism transforms into the spectrum of colors called a rainbow, the infinite which is beyond all form or description transforms into a spectrum of essential qualities. Examples are: peace, love, happiness, strength, beauty, creative intelligence etc. When our mind, emotions and will are transparent or translucent relative to a particular quality of essence, the source of its light can shine through without distortion (or with minimum distortion) reflecting the quality of essence.