What does the end of Russian doll mean?

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Tags

1. #thing
2. #always
3. #where
4. #focuses
5. #birthday
6. #death
7. #wakes
8. #russian
9. #nadia
10. #whole
11. #party
12. #inevitable
13. #living
14. #ending
15. #season
16. #repeats
17. #story
18. #first
19. #again
20. #every
21. #great