S'éternise is a beautiful French reflexive verb meaning "to drag on forever" or "to last for a very long time," often longer than desired. It comes from the word éternel (eternal), which gives it a poetic and slightly dramatic quality.
In the song, Luiza sings, "Demain en demain s'éternise", which poetically captures the feeling of procrastination. It describes how putting things off until 'tomorrow' creates an endless cycle where the future never truly arrives, and the waiting just drags on.
We have all told ourselves the classic lie: "Demain j'arrête c'est promis" [Tomorrow I quit, it's a promise]. In "Demain Demain," French artist Luiza calls out our endless habit of putting life on hold. She repeats the catchy excuse "demain ceci, demain cela" [tomorrow this, tomorrow that] until it sounds dizzying. We treat the future like an easy fix for everything wrong with our lives right now. She mocks that blind optimism directly, singing that people expect "tu trouveras l'amour" [you will find love] and "la chance tournera" [luck will turn] the second the clock strikes midnight.
Her sharpest critique comes in the chorus when she calls tomorrow "la terre promise" [the promised land] and "le paradis" [paradise]. It sounds hopeful at first, but then she drops the reality check: "Demain décourage aujourd'hui" [Tomorrow discourages today]. When you chase a fantasy version of tomorrow, it actually runs away from you ("Demain fuit qui le poursuit" [Tomorrow flees whoever chases it]). By treating tomorrow like magic, you end up freezing right where you are.