Once the ego is transcended, the identifications with the body and the mind have also ended. In the mind alone the sensations of joy and sorrow can arise. These are different modifications of the mind. These disturbances can reach the mind only with reference to a desire fulfilled or a desire flouted. To the Realised saint there are neither ego nor desires and, therefore, his mind is ever tranquil, as thought agitations cannot rise to disturb his bosom.