The user must focus their mind to an object which the user desired what will the object does. After that, the user recite a Latin spell
- Age nunc intellectum atque voluntatem omnem meam
The spell means:
- Go to now, my understanding, and my entire will
After that, the will become realised. In this case, Catriona wanted her insect taxidermy collection relive and make enough noise to make Sam' ears bleeding.