As such, God is described as the "Most Hidden of All Hidden",[1] and Olam is etymologically related to, and sometimes spelled as,[2] עלם (Noun: העלם Helem meaning "concealment"). While these dimmings form innumerable differentiated spiritual levels, each a particular World/Realm, nonetheless, through the mediation of the sephirot (Divine attributes), five Comprehensive Worlds emerge. "Higher" realms metaphorically denote greater revelation of the Divine Ohr light, in more open proximity to their source, "Lower" realms are capable of receiving only lesser creative flow.