In Celtic myths, the otherworld holds significant importance as a realm of the dead and a source of magical encounters. It is often depicted as a beautiful, eternal landscape that exists parallel to the mortal world. The otherworld serves as a place of refuge for souls and hosts notable characters like gods, heroes, and supernatural beings. This mythology illustrates a belief in an existence beyond death, reflecting Celtic values regarding spirituality, nature, and the interconnectedness of life and the afterlife.