[@PharaohAtem]

Well I decided that Manta is casually going to use his psychic powers to have him and Danielle fly through one of his memories (flying through endless clouds and sky essentially) with a rainbow, then diving into the ocean and swimming through his homeland. 

Basically she'll get a first hand look and he's going to essentially tell her that no matter what he sees, hears and experiences it'll never be enough and he'll always want more.