The metaphysics of reincarnation are nothing short of enthralling, from the notion of an immortal soul drifting through myriad life forms to the intimidating Wheel of Samsara with its heavenly and hellish realms. Why does this version of immortality appeal to us? And what, if anything, can science tell us about the survival of the soul? Join Robert and Julie for a rich discussion on the reincarnation. Image source: Godong/Universal Images Group/Getty