Faith and trust in a new belief or a renewed one with hope.
I will use some some knowledge of psychology for explanation. Loss leads to grief. That may be experienced in moments, months, and even years. Those stages are:
Denial (Lack or no acceptance. It is not real)
Anger (May also be seen as blaming . . .)
Bargaining (Bartering with reasoning for how it would not of happen)
Depression (Realism and/or pessimism as loss is realized as now with consequence)
Acceptance (This stage optimism 'may' be spawned)
Scene: A supervisor is told by an employee the order to be delivered was incorrect.
Denial: Says loudly, "What? I don't understand?"
Anger: Slams fist on desk or throws pen projected internally on who pulled the order.
Bargaining: Says, "I should have checked the orders myself."
Depression: Sighs, "I guess we can kiss that customer good-bye".
Acceptance: (Here is where optimism may enter) He says, "Everything works out for the best. (Solution) I will call them. apologize, and offer to deliver the part, now, (ASAP). A new belief.
Perhaps his solution would have been a policy to deliver the part the next day on the typical route. He has acceptance, faith, and trust, just a different focus - policy.There is hope to regain customer confidence and loyalty. In other words a renewed belief.
With optimism faith and trust enters with acceptance in a synergistic form. Hope results and solutions become viable no matter what those are.