In Hindu mythology, the concept of karma signifies the moral law of cause and effect, where one's actions directly influence their future. It highlights that every deed, intention, and thought contributes to an individual’s destiny. This principle encourages ethical living, as good actions lead to positive outcomes in the cycle of reincarnation. Karma underscores the interconnectedness of all beings, prompting a life of responsibility and mindfulness regarding one's choices and their ramifications.