She had once been an idealist who needed to give all her talent to a great goal, but now she realized that all that she had done was meaningless, and the future could not have any meaningful pursuits, either. As this mental state persisted, she gradually felt more and more alienated from the world. She didn’t belong. The sense of wandering in the spiritual wilderness tormented her. After she made a home with Yang, her soul became homeless.
- Cixin Liu, 三体 (Sān Tǐ) (Pg. 257)
I get it but the solution lies within the pursuit, the purpose is having nothing and striving for something.