There is a Rush the band song called Natural Science. The lyrics start, when the ebbing tide retreats along the rocky shoreline it leaves a trail of tidal pools in a short- lived galaxy. Each microcosmic planet, a complete society. ~permanent waves 1980. This podcast talks about the ebb and flow of life, my life and asks you where you are with your ebb and flow. This is Big Dave and you go and have a great day!