Yaqīn: Certainty
Yaqīn is sureness that has stopped needing proof. A person can be steady about something they will never hold in their hands, and that steadiness doesn't wobble when years pass with nothing to show. Seeing a thing far off and counting on it become nearly the same act, which is why the long wait doesn't feel like being fooled.
Shawq: Longing
Shawq is the ache for what you love and cannot reach. The distance keeps the love awake, since people who get everything at once usually stop looking. For someone kept far from what was promised, the wanting grows sharper, not weaker, and that sharpness is what carries them across decades.
Ṣabr: Patient endurance
Ṣabr means holding steady while the waiting drags on. Waiting a week costs little; waiting a whole life for something that stays out of reach wears a person down until they either quit or settle in. Those who settle in stop marking a deadline, and the days get lighter once nothing is overdue.
Be in the world like a stranger, or someone passing through: nothing here is home
A saying of the Prophet puts it that way. Anyone who admits they are only passing through gives up the fight for a permanent place, and losing that fight is what usually turns people bitter when the years don't deliver. Calling yourself a stranger sounds bleak, but it takes the sting out of never getting comfortable, because comfort was never the plan.
Tawakkul: Leaving the outcome with God
Tawakkul means handing the result over once you have done your part. A person keeps caring about the thing and stops needing to be the one who watches it finish. Trust of that size can rest on something it never saw arrive, and the person carrying it looks calm because the matter is no longer theirs to force.