the passion of Tristan and Isolde expresses the longing for the ‘eternal peace’ of death. … The trap to be avoided here, however, is that of conceiving this pure life drive as a substantial entity subsisting prior to its being captured in the Symbolic network … it is the very mediation of the Symbolic order that transforms the organic ‘instinct’ into an unquenchable longing that can find solace only in death.

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