The lesson conveyed through the tale of Narcissus in Greek mythology centers on the dangers of vanity and excessive self-love. Narcissus’s fixation on his own reflection leads to his demise, ultimately transforming him into a flower. The myth encourages reflection on one’s relationships with others, warning against prioritizing self-obsession over genuine connections. It highlights the importance of humility and compassion, reminding audiences that excessive love for oneself can result in isolation and despair on a larger scale.