It is said to be a Pokémon that brings good fortune. When it spots someone who is pure of heart, a Togetic appears and shares its happiness with that person.
(From Bulbapedia)Togetic is a dainty, bipedal Pokémon that is small in stature. It is white with a red and blue triangular ring pattern on its body. It also has a relatively long neck and long legs and a pair of wings on its back, giving it a vaguely angelic appearance. Togetic can sense the kindness in other people and Pokémon's hearts. Whenever it spots a pure-hearted person, it tends to go to that person and shower them with happiness and glowing down called "joy dust". To share its happiness, it is said to fly around the world seeking these people. If it is not with kind people, however, it becomes dispirited and loses energy. Togetic is rare in the wild, but can sometimes be found living within the forests.