Saṃyama is the name the Yoga Sūtras give to the three inner limbs performed on a single object. Through it, Patañjali says, comes the light of insight, and the third chapter lists the powers it may bring. He warns that these powers are obstacles to absorption, though they seem like attainments to the outward-turned mind.
Saṃyama
Concentration, meditation and absorption practised together on one object, the source of yogic insight and powers.
Also: Samyama