mental image one can acquire of a meditation subject.

Mental sign, theme, or image.

nimitta]: Mental sign, image, or vision that may arise in meditation. Uggaha nimitta refers to any image that arises spontaneously in the course of meditation. Paribhaga nimitta refers to an image that has been subjected to mental manipulation.

The son of Dandapani and father of Ksemaka

the material cause, the direct, efficient cause. The period or moment of time which may be regared as causing the event (see also k â r a n a).