"Yeah", Adrien said. "That was weird -- I can't believe it worked".

"It's not an easy thing to imagine", Valerion whispered. "That was astounding".

Adrien smiled, and turned around; he felt his cheeks flush red. "Thank you", he said in a low voice. "I am not even sure how I imagined it -- I mean -- I didn't really see it".

"No, that makes sense", Valerion said. "While the word 'imagine' implies that you need to form an 'image', in this case that is not always true; you can grasp a concept with your other senses just as effectively. The most important part is that it needs to be a clear and vivid representation of that concept - and you evidently succeeded in this case".