Heartbeat
My camera has a very large zoom; because of that, every little movement is amplified. I filmed a small hole in the wall with the camera fixed on my chest. The hole moved in the rhythm of the heartbeat, as I held my breath for one minute. This reminded me of the meditation technique of “focusing the mind in just one point”, and shows how much mental experiences, including spiritual ones are related to the functions and states of the body, such as breathing, oxygen flow and sensory deprivation.