In Indian philosophy and some Indian religions, samskaras or sanskaras (Sanskrit: संस्कार) are mental impressions, recollections, or psychological imprints. In Hindu philosophies, samskaras are a basis for the development of karma theory. In Buddhism, the Sanskrit term samskara is used to describe "mental formations," "will," and many other concepts; in Pāli it is referred to as saṅkhāra. According to various schools of Indian philosophy, every action, intent or preparation by an individual leaves a samskara (impression, impact, imprint) in the deeper structure of the person's mind. These impressions then await volitional fruition in that individual's future, in the form of hidden expectations, circumstances or a subconscious sense of self-worth. These Samskaras manifest as tendencies, karmic impulses, subliminal impressions, habitual potencies or innate dispositions. In ancient Indian texts, the theory of Samskara explains how and why human beings remember things, and the effect that memories have on people's suffering, happiness and contentment. The Sanskrit word saṃskāra (संस्कार) has various context-driven meanings that broadly refer to "the putting together, accomplishing well, making perfect, a form of solemn recognition and getting ready" and "mental impression, recollection". The first use of the term, which primarily relies primarily on its first definition, refers to Hindu rites of passage. In second definition presents saṃskāra as a form of disposition, impression or behavioral inclination. In this sense, it is used as a psychological concept in some Indian philosophies, such as Yoga. The concept of saṃskāra is also discussed as Vasana (Sanskrit: वासना vāsanā), particularly in the Vaiśeṣika school of Hinduism. Vasana also means "impression, inclination of anything remaining unconsciously in the mind". Samskara, or Sankhara, is a significant concept across major schools of Hindu philosophy as well as Buddhism and Jainism. The schools of Indian philosophy differ on the specific mechanisms about how samskara operates at the subconscious level.