A sect is a subgroup within a religious, political, or philosophical tradition, often arising from splits caused by perceived heresy or differing beliefs. Authors like Henrik Ibsen emphasized sectarian conflicts, while Proudhon criticized sects as divisive forces, contrasting them with the unity of the people. Swami Vivekananda, however, regarded sects as essential expressions of personal and communal spiritual energy.
Sociologically, sects are characterized by clear boundaries and tension with the wider society, yet in contexts such as Indian traditions, they signify structured, leader-centered practices. Their role as both fragmented and evolving entities highlights their lasting importance in shaping ideological landscapes.