All supernatural powers. People who practice Yoga and the Mantras and rituals described in the Hindu religious books achieve some supernatural powers. These are called Ridhis and Sidhis in GurBani. These supernatural powers come at a very early stage of Bandgi. If indulged, they will stop any further spiritual progress. They are considered a major roadblock in the passage to Sach Khand. These supernatural powers are used by Akal Purakh for His administration of the universe and the use of such powers by individuals is considered a violation of the Hukam of Akal Purakh.