Saraṇa: Refuge
Going for refuge is running to what holds. Saul's men circle the house at nightfall, and the tower does not make them vanish, it gives ground that stays firm while they prowl. A tower leaves the men below exactly where they are and simply raises you past their reach. Shelter of this kind is a place to stand, which is why the singing can begin before the siege lifts.
Anussati: Recollection
Recollection is the practice of calling one thing steadily to mind. Strength that is out of sight gets carried in the mouth instead, rehearsed aloud until the body starts to believe it, which is why the song comes first and the rescue after. Fear thins when the mind has something solid to hold, the way people whistle walking home in the dark.
Saddhā: Confidence
Confidence is trust placed in what has already proved itself. The tower earned it on some earlier night, and that memory is what makes it possible to sing while the danger is still outside the door. Trust of this kind works like a rope you have put your weight on before: you stop testing it and simply climb.
Pāmojja: Gladness
Gladness is the light lift that comes when pressure releases. Morning arrives, the night of watching ends, and the voice goes up before anything has been explained or repaid. Singing aloud is the body's own report that the fear has drained out, the way you breathe out hard once you are through your own front door.
Mettā: Loving kindness
Loving kindness is unconditional goodwill toward beings. The kindness sung of at daybreak is steady loyalty, the sort that shows up night after night, and mettā is that same warmth offered outward by a person rather than received. Dogs snarl and circle the city until dawn, and to sing of kindness while they are still out there keeps one door in the heart open.