Using this art, they constantly observe the situation in the lower realm.
Kami usually stands on the border of The Lookout to watch what happens on the Earth. Upon becoming the Guardian of Earth, Dende also displays this habit. Piccolo also gains the ability after fusing with Kami.
Old Kai claims to have an "omniscient vision" and he usually uses it to see girls playing beach volleyball (in the Manga, he instead claims that he uses such an ability to see women strip naked), citing that such made reading girlie magazines unnecessary for him when refusing Goku's bribe. He also uses it with a Crystal Ball to watch the fight against Super Buu and Kid Buu.