3 ideas
When someone studies a crisis that mirrors their own, supposedly objective inquiry turns into self-examination. The method of detached research cannot hold, because the researcher's stake in the answer shapes what he looks for and what he can bear to find.
Mastery of how the universe works leaves untouched the question of whether it is worth living in. Knowledge of mechanism and conviction of purpose are separate faculties, and exercising one does not supply the other.
Yunes's doubt presents itself as an intellectual problem, but it is fed by grief, disappointment and loneliness. For that reason argument alone cannot dissolve it. The novel suggests that faith, if it returns, comes through experience, through love, loss and encounter with other people, rather than through winning a debate about God's existence.