Definition: Ananke means "a worm in a jar." It's a metaphorical expression used to describe an object that lacks physical form but maintains a continuous existence within another entity, often a vessel or container. Definition: Ananke is a metaphor for something that exists both physically and conceptuallyโignoring the physical aspect and considering its essence. The word is often applied to concepts such as memory, time, and space, which can be considered abstract entities that exist independently of their physical properties but still maintain continuity over time. It also means being invisible or unobservable, reflecting an understanding of the immaterial nature of existence.