Watch An Act of Meditation (2017) : Full Movie Online Free A man is depicted at rest; one can hear the artist giving him instructions—when given the prompt, he is told to open his eyes and speak the word ‘belief’ in three languages: Arabic, English and Hebrew. Each one is subtitled with one of the other languages. The soundtrack for the work features two very specific frequencies of sound: 42.7hz, a triangular wave, and 936hz, a sine wave. These frequencies are said to stimulate the pineal gland, where melatonin is produced.