He is the First and the Last, the Outward and the Inward: the oldest thing is also the nearest
A single line of the Quran holds all four names at once. Meeting the everlasting in something you can touch leaves a person holding two facts that seem to fight. Held together as one, the far-off and the close-up are the same thing, so neither has to be shrunk to save the other.
Tajallī: Self-disclosure
Ibn Arabi uses this for the hidden showing itself in a form. Nobody meets the boundless head-on; a person only ever meets it in something sized to human eyes and hands. The form is where the showing happens, so an ordinary thing in front of you can carry the whole weight of it.
Kalimah: A word God speaks
The Quran calls Jesus a word God cast to Mary, and Ibn Arabi builds on that. Speech usually means information, so calling a person a word can sound like a riddle. A word is what one living being sends out to reach another, so it can be met and answered instead of only studied.
ʿIlm al-yaqīn, ʿayn al-yaqīn, ḥaqq al-yaqīn: Certainty heard about, seen, and lived through
Three Quranic words mark the grades of certainty, and teachers explain them with fire: hearing that it burns, seeing it burn, being burned. Each step costs more, and each is harder to talk anyone out of. Someone who has gone the whole way speaks with a steadiness that argument cannot reach, because their body knows what their words are about.
Dhawq: Tasting
Al-Ghazali uses this for knowing something firsthand, the way you know honey by eating it. Anyone who has tasted and then tries to pass it on hits the same wall: the words are accurate and still fall short. So they reach for the plainest physical language they have, since it comes closest to handing someone the taste itself.