(lit. worlds) Spiritual Realms in the cosmic order that distinguish one stage from another in the gradation from the ‘higher’ to the ‘lower’ manifestations. In the ‘higher’ worlds’ the Divine energy (Ohr) is more conscious, than the definitions and containers (Keilim). As the ‘worlds’ gradate ‘lower’ the containers become more dominant than the energy. Each ‘world’ contains ten spheres (Sefirot), each of which is composed of Ohr and Keli.