Maximum Brainwave Coherence During Yogic Flying through Maharishi's Transcendental Meditation Sidhi Programme of Yogic Flying. Maximum Brainwave Coherence During Yogic Flying through the Tran­scendental Meditation Sidhi Programme: During the Transcendental Meditation Sidhi Yogic ­Flying technique, high levels of EEG ­coherence are recorded (above right). Maximum EEG coherence is found at the point when the body lifts up (centre). References: Scientific Research on Maharishi’s Transcendental Meditation and TM-Sidhi Programme—­Collected Papers, Vol. 1: 705 – 712, 1977; International Journal of Neuroscience 54: 1 – 12, 1990.