While "meaning of life" is a metaphysical proposal of a life's destiny, the question of "meaning in life" is what makes life worth living?
3 questions to determine meaning in life:
1. What do you want to exist even if you don't?[^1]
2. How real is it?
3. How connected are you to it?
4 characteristics of meaning in life:
1. Purpose
2. Coherence (Intelligibility)
3. Mattering
[^1]: Susan Wolf, *Meaning in Life and Why it Matters*