Werset 6.216.16.26.36.46.56.66.76.86.96.106.116.126.136.146.156.166.176.186.196.206.216.226.236.246.256.266.276.286.296.306.316.326.336.346.356.366.376.386.396.406.416.426.436.446.456.466.47

When he (the Yogi) feels that Infinite Bliss which can be grasped by the (pure) intellect and which transcends the senses, and established wherein he never moves from the Reality.

when one knows that boundless happiness which is grasped by the understanding and lies beyond the senses, and, established there, never moves from the truth,

The sentence continues by describing the happiness of this state. It is ātyantika, boundless or ultimate, beyond the reach of the senses but grasped by the understanding (buddhi). Established there, the yogi does not move away from the truth. The verse makes an important distinction: this joy is not a heightened form of sensory pleasure but something known through a purified understanding. It answers a natural worry that the disciplined life would be joyless. Krishna claims the opposite, that its joy surpasses all others.