वृत्ति

Vṛtti

concepto

Mental modification, fluctuation of the mind. In YS 1.2, yoga is the restriction of the vṛttis: yogaḥ citta-vṛtti-nirodhaḥ. Patañjali enumerates five types: pramāṇa (valid cognition), viparyaya (error), vikalpa (verbal concept), nidrā (sleep), and smṛti (memory). Their stillness is the very essence of yoga.