Metamorphosis is a sudden change, a ‘becoming-other’ in life or in philosophical perspective. A revelatory event initiates in a double manner the move from Heidegger's futile search for a transcendental IT that delivers perceptible beings to the confident positing of Deleuze's transcendental empiricism, suffused with the IF of incorporeal sense. In the process Deleuze dramatically enacts his personal connection between sense (Sinn) and being (Sein).