Talk 1, Temptation, reveals that temptations don’t cause you to sin. Instead, a weak spiritual immune system causes you to sin.
No, this does not mean your lack of religiosity. A strong spiritual immune system isn’t about religion but about relationships. Specifically, loving relationships. To make your physical immune system strong, you need nourishing food. To make your spiritual immune system strong, you need nourishing love. And when your spiritual immune system is strong, it’ll be more difficult to fall into sin.