The practice of Dharana, Dhyana and Samādhi together is designated as Samyama (Sanskrit: संयम, holding together) in the Yoga Sutras of Patanjali. Samyama, asserts the text, is a powerful meditative tool and can be applied to a certain object, or entire class of objects. A yogi who does "Samyama" on "Pratyaya" (notions, customs) of men, states sutra 3.19 of the text, knows the series of "psycho-mental states of other men". A yogi after successfully completing "Samyama" on "distinction of object and idea" realizes the "cries of all creatures", states sutra 3.17. A "Samyama" on friendliness, compassion and joy leads to these powers emerging within the yogi, states sutra 3.23. The meditation technique discussed in the Yoga Sutras of Patanjali is thus, states Mircea Eliade, a means to knowledge and siddhi (yogic power).