Subitism

The term subitism points to sudden awakening, the idea that insight into Buddha-nature, or the nature of mind, is "sudden," c.q. "in one glance," "uncovered all together," or "together, completely, simultaneously," in contrast to "successively or being uncovered one after the other." It may be posited as opposite to gradualism, the original Buddhist approach which says that following the dharma can be achieved only step by step, through an arduous practice.