The user can summon the spirit of desire. The spirit of desire is a spirit that will temporarily possess someone in order to know their greatest desires. By knowing their greatest desires, the spirit can now fulfill them! With a genie, the wisher would have to be careful of word choice; the spirit of desire knows your wishes without you having to say them. You also don't have to be careful of what you wish for because the spirit doesn't find your desires in your emotions, but in your thoughts.