This essay reviews the recent book by Harald Atmanspacher and Dean Rickles, Dual-Aspect Monism and the Deep Structure of Meaning. The essay aims to contextualize and clarify the book's core argument about the theoretical and empirical fruitfulness of decompositional dual-aspect monism as an intervention into the mind-body problem that ascribes a pivotal role to meaning. The variants of dual-aspect monism discussed were developed primarily by physicists, but the essay also highlights the crucial contributions to the argument by the one non-physicist involved, Carl Gustav Jung, as well as noting the significance of dual-aspect monism and of the reviewed book for analytical psychology.