Dukkha is a fundamental concept in Buddhism that refers to the inherent suffering or dissatisfaction in life. It encompasses a range of experiences, from physical pain to emotional distress, and highlights the transient nature of happiness. Dukkha suggests that life is often marked by impermanence, leading to feelings of unease and longing. The recognition of Dukkha is essential for understanding the Four Noble Truths, which outline the nature of suffering and the path to its cessation. By acknowledging Dukkha, individuals can begin to explore ways to alleviate suffering through practices such as mindfulness and ethical living.