It makes sense to me. I am very idealistic, and spout off ideas, meaning/creativity in life- while I seem to enjoy a lot of protection from outside forces.
But I believe it's possible to actually dualize yourself, in your own brain with enough practice. It's no where near as easy if a real dual comes along. But it IS possible since you're from the same quadra. An SLE can make themselves more like an IEI, an IEI can make themselves more like an SLE. This makes a person feel a LOT better.