Ephemerilude
noun
The sensation of existing in a temporary moment, realizing your thoughts and feelings are uniquely your own, akin to the distinct creatures found on an isolated island, before time's inevitable passage erodes them, leaving no trace behind.
From Greek 'ephemeros' (short-lived) + Latin 'ludus' (play), implying a fleeting moment of self-realization like a brief play of the self. Pronounced "eh-FEH-meh-rye-lood"