From Hindupedia, the Hindu Encyclopedia
By Swami Harshananda
Though the word saiyama is used in the general sense of control or self-control, the Yogasutras of Patañjali employs it as a technical term. When dhāraṇā and dhyāna result in samādhi, the process is defined as saiyama.
Patañjali describes a number of siddhis that a yogi attains by practicing saiyama on various objects.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore