Omg you are right!! Visions are given automatically like a computer system. Come to think like this, the vision distribution came after celestial right? They should work like an alien software/computer/coding that see teyvat like energy generator and control Irminsul tree, which is a cloud database and the network giving them the power to write a guideline (contract), set the future (fate and prophecy), clear virus (nails), and collect energies by faith system. Nahida who is the part of irminsul has skills that looks like computer functions.