Krishna defines the exact nature of the joy experienced in Samadhi. In that state (yatra), the Yogi experiences a supreme, boundless, and infinite happiness (sukham ātyantikaṃ). This specific happiness is completely beyond the reach of the physical senses (atīndriyam); it can only be grasped and perceived by a pure, refined intellect (buddhi-grāhyam). Once a person perceives and knows this (vetti yat tad), they are firmly established (sthitaḥ) and absolutely never deviate or slip away (na caivāyaṃ calati) from the ultimate Truth (tattvataḥ).