Yoga Sūtra Chapter Three verse 37
ते समाधवुपसर्गाव्युत्थाने सिद्धयः ॥३७॥
te samādhau-upasargāḥ vyutthāne siddhayaḥ ||37||
These impediments to integration, accomplishments to turned outwards.
te - these, of thee, they, thosesamādhi - putting together; communion; absorption; combining; integrationupasarga - impediments; misfortune, trouble, a natural phenomenon; a disease superinduced on another; additionvyutthāna - turned outward; swerving from the right course; rising upsiddhi - accomplishment, performance, fulfilment, attainment, success; the hitting of a mark; coming into force, validity; any unusual skill or faculty or capability; the acquisition of supernatural powers by magical means or the faculty so acquiredCommentaries and Reflections
Commentary by S Ramaswami:
“All these powers are called Siddhi for a Vyutthāna, they are something to be desired or achieved.
But for one going towards Nirodha Samādhi there are impediments or obstacles.
A Vyutthāna covers all states of Citta from fluctuating to one-pointed. So the ability for Ekāgratā is there but the ability for Nirodha is not there.
Patañjali is making an important disctinction.
Raja Bhoja says that the Samādhi gets slowly dissipated by the Yogi getting excited at attaining the Siddhi. He gets arrogant his Asmitā is strengthened, which hinders further progress.”