Nimitta

In Buddhism a Nimitta is a sign or mark by which objects are recognized. It refers to a general and relatively persistent characteristic in contrast to secondary characteristics. The apprehending of signs enables perception of objects and feeling tones, reinforcing ignorance and leading to suffering. In addition, the word nimitta is used in Buddhist scriptures to refer to a causal ground (ex. to criticize someone), an auspicious sign or omen, or an outer appearance (ex. a reflection).