Complex sentence: In ancient Orphic sources and in the mystery schools, Tartarus is also the unbounded first-existing entity from which the Light and the cosmos are born deity Tartarus was primordial god of the highest air, underworld, torment, abyss and the oceans.
Split into simpler sentences: In ancient Orphic sources and in the mystery schools, Tartarus is also the unbounded first-existing entity from which the Light and the cosmos are born. Deity Tartarus was primordial god of the highest air, underworld, torment, abyss and the oceans.