Kataññutā: Gratitude
Gratitude has two halves in the early texts: knowing a benefit was given, and giving something back for it. Hezekiah had been told to set his house in order, then received fifteen more years, and those years went into storehouses, a rerouted spring, and envoys walked around his silver and spices. A gift of life is repaid in the same coin, by what the borrowed time is spent on, and nothing was sent back up the line it came down.
Mada: Intoxication
Three things go to a person's head by the early lists: youth, health, and being alive. Hezekiah's heart rose as soon as the sickness left him, recovery working the way strong drink does, blurring the memory of who had kept him breathing. A man newly up from a deathbed feels unkillable, so the weeks after a healing are more slippery than the illness was.
Māna: Conceit
Conceit is the mind measuring itself against others and settling on higher. Lifted up describes a position more than a mood: Hezekiah standing above the broken Assyrian siege, above the shadow that went backward on the steps, above the prophet and the weeping that came before any of it. Rescue swells a heart as readily as victory, which is why the safest hour after deliverance is the one that needs the closest watch.
Vipāka: The ripening of a deed
Deeds ripen, and the fruit is seldom eaten alone. Wrath reached Judah and Jerusalem as well, since a king's swollen heart works its way into his treaties, his walls, and the household where his sons are raised. Told afterward that everything in those storehouses would be carried off to Babylon, he heard only that there would be peace in his own days, the same closed circle bearing fruit a second time.
Nivāta: Humility
Humility in Pali is a word for lying low, the way water settles into the bottom of a valley. Hezekiah did come down, humbling himself for the pride of his heart, and the wrath was held off through his lifetime. Coming down sets the heart level with the people around it again, and from that level the fifteen years stay a gift instead of a possession.