There is plenty in literature and songs about the meditative aspect of water; how it can lead to introspection, to pondering the mysteries of life, or just wondering where it all went wrong. I’m not claiming I particularly fit into any of these situations but all will be triggered by the presence of water at some point. The meditative effect is mainly invoked by fresh water; seas are often a different thing altogether (e.g. JMW Turner), though not without the possibility of dreaming.
