 The gankyil is the energetic signature of the Trikaya, realised through the transmutation of the obscurations forded by the Three poisons (refer klesha) and therefore in the Bhavachakra the Gankyil is an aniconic depiction of the snake, boar and fowl.Gankyil is to Dharmachakra, as still eye is to cyclone, as Bindu is to Mandala.The Gankyil is the inner wheel of the Vajrayana Dharmacakra (refer Himalayan Ashtamangala).