This brief article explores a phenomenological parallel between ego dissolution in deep meditation or psychedelic states and the dissolution of the reference frame in relativity. This is also the immediate difference between a measuring device as an observer and a conscious observer. A conscious observer can undergo ego dissolution or reference frame dissolution when the default mode network in the brain desintegrates. When a conscious observer ceases to define themselves as a fixed point in space-time, the zero-point of their reference frame, perception no longer occurs from a localized standpoint. Instead, the observer directly experiences space-time as it is: all times and all places existing simultaneously in a non-local, eternal now. This experiential state, often described by mystics as “unity with the universe,” reveals a consciousness that no longer observes reality as the unfolding from moment to moment of events through time, but as space-time itself: all at once in an eternal now. This record (DOI: 10.5281/zenodo.17340466) represents the final revised version of the paper 'ego-dissolution = 'reference frame'-dissolution under relativity.Earlier versions remain available in the Zenodo version history for transparency and citation traceability.