Usage of the term indulgence in my experience most often accompanies a calculated self-satisfaction. Such as indulging oneself in butter tarts. It is however also indicative of the extension of time for performance of an obligation; for example, indulgence for payment of a debt. Both indulgences share a degree of satisfaction (though the character switches from transparency to ambiguity). The more discernible difference perhaps is that in the first instance one indulges oneself; whereas in the second instance the indulgence is vicarious. Today I enacted the delivery of first-hand indulgence.