What is the speakers point in not waving but drowning?

In "Not Waving but Drowning," the speaker conveys feelings of isolation and misunderstanding. The metaphor of someone seemingly waving but actually drowning symbolizes the struggle to communicate distress and the gap between one's inner turmoil and how it's perceived by others. The poem highlights the tragic consequences of being overlooked or misinterpreted, emphasizing the need for empathy and awareness of others' struggles. Ultimately, it reflects on the profound loneliness that can accompany emotional pain.