The visual system is often the easiest to work in to create changes from existing state to desired state. It is really the feelings that will make a difference, but it is more difficult to work directly with feelings. Pictures can be moved and changed easily. You can have a whole bunch of things in one picture, and you can see multiple pictures and whole movies at the same time. But it is kind of hard to have two different feelings at the same time, so it is not so easy to get from one to the other.
Visual pictures is a very useful vehicle for doing that.
If different feelings are attached to two different kinds of pictures and we can get her to change one picture into the other, then the feelings are likely to follow. You have to discover and utilize what works for the person. The same picture might have a totally different effect depending on where in space she puts it. If it is to the left it might be considered a duty, if it is to the right it might be considered fun. If it is in the front it might be uncertain, if it is in the back it might be a solid fact.