I´m sure this is perfectly normal

From Wikipedia (link below).

>>>Yoginis are often theriomorphic, having the forms of animals, represented in statuary as female figures with animal heads. Yoginis are associated with "actual shapeshifting" into female animals, and the ability to transform other people. They are linked with the Bhairava cult, often carrying skulls and other tantric symbols, and practising in cremation grounds and other liminal places. They are powerful, impure, and dangerous. They both protect and disseminate esoteric tantric knowledge. 

>>>They have siddhis, extraordinary powers, including the power of flight; many yoginis have the form of birds or have a bird as their vahana or animal vehicle. In later Tantric Buddhism, dakini, a female spirit able to fly, is often used synonymously with yogini. The scholar Shaman Hatley writes that the archetypal yogini is "the autonomous Sky-traveller (khecari)", and that this power is the "ultimate attainment for the siddhi-seeking practitioner".

>>>The goal of Yogini worship, as described in both Puranas and Tantras, was the acquisition of occult powers or siddhis.

>>>The Sri Matottara Tantra describes 8 major powers, as named in the Yoga Sutras of Patanjali, namely: Anima, becoming microscopically small, giving knowledge of how the world works; Mahima, becoming huge, able to view the whole solar system and universe; Laghima, becoming weightless, allowing levitation and astral travel away from the body; Garima, becoming very heavy and powerful; Prakamya, having an irresistible willpower, able to control the minds of others; Ishitva, controlling both body and mind and all living things; Vashitva, controlling the natural elements, such as rain, drought, volcanoes, and earthquakes; and Kamavashayita, gaining all one's desires and any treasure.

>>>The Sri Matottara Tantra lists many other more or less magical powers that devotees can obtain by invoking the Yoginis correctly, from the ability to cause death, disillusion, paralysis, or unconsciousness to provocation, delightful poetry, and seduction.^"

>>>Sculptures at some of the Yogini temples such as Shahdol, Bheraghat and Ranipur-Jharial depict the Yoginis with kartari knives, human corpses, severed heads, and skull-cups. There appear to have been corpse rituals, shava sadhana, as is described in the Vira Tantra, which calls for offerings of food and wine to the 64 Yoginis, and for pranayama to be practised while sitting on a corpse. The Vira Cudamani requires the naked practitioner (the sadhaka) and his partner to sit on the corpse and practise maithuna, tantric sex. 

>>>The Sri Matottara Tantra instructs that the corpse must be intact, beautiful, and fresh; Dehejia notes that this does not imply human sacrifice, but the selection of the best corpses. In the circle of the Mothers, in front of the statue of Bhairava, the corpse is to be bathed, covered in sandalwood paste, and have its head cut off in a single stroke. The Mothers will, it states, be watching this from the sky, and the sadhaka will acquire the 8 major siddhis. Further, flesh from the corpse is eaten; Dehejia states that the practice "is not uncommon" and that in Kamakhya, people avoid leaving a corpse overnight before cremation "for fear of losing it to tantric practitioners".

Wikipedia on "Yogini"