An 8′ star-tetrahedron burnable sculpture designed as a participatory canvas for celebrating the vibrational nature of the visual spectrum. The shape of the sculpture is inspired by the study of sacred geometry and the spiritual concept of the Merkabah. Participants are invited to add color to the object over the course of the event. The use of color and lighting on this piece is inspired by the theme, “Reverberation.” The perception of color on any colored surface is the result of, “color by subtraction.” A red tetrahedron is red when viewed in white light because all the wavelengths of the spectrum that fall on it are absorbed except red which is reflected into the eye; Visual reverberation.