live for

verb3

1. •
   To deeply enjoy or be fulfilled by something esteemed as very important in one's life.

   • I live for knowledge.
2. •
   To find a reason to continue having the will to live.

   • He has been chronically depressed and feels he has nothing to live for.
3. •
   To eagerly await or hope for (a significant life event).

   • I live for the day I can finally break free from my servitude.