Here is what Carl had to say, which I agree with:
I think it is incorrect to say that the "entire purpose of the Inception team is to make money by helping their clients uncover or implant some practically useful bit of information" when the only reason Cobb takes the job and assembles the team is because he believes the client is able to reunite him with his children (the other team members, of course, have other motives). Cobb is haunted by his wife's death, which was largely his fault, and he is trying, in some way, to pursue redemption by being with his children and being a new man. There isn't, I don't think, an obvious and blatant "God theme" in the movie, yet Cobb's realization of his limits and failings points to a certain spiritual awakening and undermines the notion that it is all about "relentless materialism." Again, I believe it is completely the opposite; I find that "reading" as flawed as the idea the movie is promoting gnosticism.I am still a Fr. Barron groupie, even if I disagree with him here.
The "deep exploration of the self" is shown in Cobb's coming to grips with the selfishness and jealousy that destroyed his marriage, with his obsessive need to control and manipulate. In the end, he has to confront his demons (his wife—or, rather, her memory, is portrayed with a somewhat demonic quality) and accept and admit his failings. This allows him, then, to let go completely of his demons when he leaves the token spinning at the very end. Continue reading.