It is revealed in "The Amber Spyglass" that certain trained people, particularly witches and human shamans, have achieved the ability to survive separation from their dæmons by undergoing an initial voluntary separation done at a special location. For the witches this is at a canyon underneath the earth in Lyra's world. Shamans endure gruelling ordeals that involve leaving their dæmon as they embark on a spiritual quest, crossing an area of death where nothing may grow or live. After rejoining their dæmon they gain the ability to separate from them to a far greater extent than previously. Both witches and shamans regain their intimate bond with their dæmon, the only change is in the distance they can travel from each other. Lyra and Will achieve the ability to be distant from their dæmons by going through the World of the Dead. It is implied that their allies, the Gallivespians, endured a similar experience, but the Gallivespians died before they could meet their dæmons.