The nineteenth yoga sutra speaks about the yogi`s capability to comprehend the minds of others, through the skilful realisation of his own consciousness. When one is virtuous enough about grasping one`s own reality, he develops the art of clairvoyance.
pratyayasya conception, idea, perception
para of others, another`s
citta mind, Consciousness
jnanarn knowledge
He acquires the ability to understand the minds of others.
Through his purity of consciousness, the yogi directly realises the nature of his own mind and consciousness, and also that of others.
The word saksatkaranat, used in III.18, stands for seeing reality. The word pratyaya means perceiving the content of the mind. Both communicate a similar meaning. By mastery over his own mind and consciousness, the yogi develops an extrasensory perception and can read the minds of others.