ʿĀlam al-malakūt: The unseen world behind the visible one
Al-Ghazali taught that everything here answers to something in a world we cannot see, the way a word answers to its meaning. Someone busy with practical, repeatable duties can feel the work is small and merely physical. Seeing the correspondence changes its weight: the plain task sits at the near end of something much larger.
Ẓill: Shadow
Ibn Arabi called the created world God's shadow. A shadow has no light of its own, and it still shows the exact shape of whatever stands in the light. A person whose work runs on outward forms swings between treating them as everything and dismissing them as nothing. The shadow holds the middle: it matters entirely because of what casts it.
Tajallī: God showing something of Himself
Ibn Arabi uses this word for the moment God discloses something, and the disclosure comes from God's side alone. Someone who receives one cannot schedule it, repeat it on command, or explain how it arrived. Afterward they hold on to what they saw, since the seeing was given and the keeping is the part that belongs to them.
All the roads are closed except to the one who walks in the Messenger's footsteps: the path is followed, not designed
Junayd said this to students hunting for shortcuts of their own making. A person handed a finished pattern feels the pull to improve it, to add a touch that suits their taste. Restraint has a reason here: the pattern came from someone who saw further, and small improvements would quietly lose what was seen.
Iʿtibār: Crossing over from the outward form to what it means
The Quran presses people to pass from what they see through to what it points at, and Sufi teachers made that crossing daily. Handling the same objects and repeating the same steps for years, a person can stop seeing past them, and the routine becomes the whole world. The crossing keeps the eye moving through the form to the thing it stands for, so long service keeps its point instead of going numb.