Manasikāra: Attention
"Don't set your mind on them" aims at where attention lands, the one thing here that can be moved. Three days of walking the hill country wore a groove, and the donkeys keep trotting through Saul's head after they are already back in the stall. Being told the search is over does not stop it; taking the mind off them does.
Taṇhā: Craving
Craving is thirst that always needs an object. Samuel closes one search and opens a larger one in the same breath: stop wanting the strays, all Israel's desire is pointed at you. Relief lasts about a sentence before the wanting finds bigger game, and a man who set out after two donkeys walks home wanting a kingdom.
Lābha-sakkāra: Gain and Honor
Gain and honor come baited, like a hook with food on it. "All that is desirable in Israel" is the richest bait in the land, held out to a farmer's son still smelling of his father's stables and three days of dust. Swallowing it is easy, and in the end the crown eats him.
Mamaṅkāra: Mine-making
Mine-making stamps "mine" on whatever passes close enough. The lost animals were his father's, and now the offer widens to "you and all your father's house," a whole nation folded into one family's holdings. The same reflex that chased two strays for three days will chase a throne for a lifetime, until Saul is hunting David across the wilderness the way he once hunted livestock.
Anicca: Impermanence
Lost on one day, found on another: the donkeys do not hold still, and neither does anything else being handed over in this room. The kingship offered here is taken back before Saul's life ends and given to a shepherd boy nobody has mentioned yet. Anything that can be found can be lost again, crowns included.