"I am going to extend my mind to each of yours... by accepting my presence, you will be pulled into a mindscape. You can't be physically injured there... but still use caution."

And with that explanation, April projected out her mind to each of the people who were sitting around her. With the exception of Lorne and Willow.

Once each person allows themselves to enter the mindscape, they will find themselves sitting on forest mushrooms. And in a dark forest landscape.