Mantra

Mantra is an ability that some may be born with who live on Sky Island. Whether it can be learned is debatable, but no evidence that it can be exists. It allows the user to detect people at a distance without knowing they are there, making it an excellent skill for planning battles. A fully trained user can predict a person's movements as well as their feelings. However, a user with this ability cannot detect a person inside something which Luffy used to his advantage against Eneru (By using recoil from his punches to strike Eneru).

It first appeared when Satori used it when Sanji, Luffy and Usopp went through the Ordeals of Spheres. Aisa was the only known Shandian was born with it and served as plot point when she helps Luffy locate Eneru.

The mantra in each priest and Eneru was displayed in different fashion. Eneru's mantra was the strongest as the ability was enhanced when combined with his Devil Fruit 'Goro Goro no Mi'. Eneru explained that it gave him a radar like sense of everything around him using sonic waves. Satori was the weakest, proven that he could not tell Luffy was behind him, Satori's brothers Hotori and Kotori lacked any form of mantra.