The rhythmic rocking, side to side, up and down. In another place and time such motion could be relaxing – letting him drift away whilst his body was very much safe – a hammock in the dappled shade of majestic trees on a balmy day. A rocking chair in front of an open fire, the crackling of the wood telling his soul he was safe. Or bathing the in the sea but at the beach, shallow, near land and a lifeguard.