The term 'of the waves' can be summarized by the word 'TIDAL'. TIDAL refers to the periodic rise and fall of ocean water due to the gravitational pull of the moon and sun. This phenomenon is responsible for the creation of tides, which are the regular changes in sea level that occur over a period of time. Tides are an important part of the marine ecosystem, as they provide food and shelter for many species of fish and other aquatic life.