The song "Still Water Runs The Deepest" is a classic country tune by Merle Haggard & Willie Nelson. It tells the story of a love that has gone sour, with the narrator expressing their disappointment and frustration in their partner. The refrain "still water runs the deepest" refers to the idea that the quietest and most peaceful people often have the most depth and complexity, but in this case, the narrator is comparing their partner unfavorably to the reliable and serene nature of still water. The lyrics communicate a sense of longing and sadness, as the narrator decides to leave the relationship and find a better, more fulfilling life elsewhere. The sentiment of the song is that even when love seems stable and dependable, there can always be hidden depths of discontent and disappointment that eventually surface. Overall, "Still Water Runs The Deepest" is a powerful ballad about the ups and downs of love, and the importance of finding true happiness and stability in one's life.