When it sometimes happens that a person is held worthy of prayer of fervour as a result of the surging of grace

prayers press on each other in a forceful way | (prayers) that are both pure and hot, like coals of fire. | In the (midst of these) stirrings a mighty gasp ascends from the depths of the heart | this is mingled with a lowliness which comes from the power of joy. | And from (the source) whence these things come | he receives a hidden assistance in his stirrings at these times from the prayer itself | and a burning fire is set in motion in the soul as a result of his joy — | until that person is lowered to the abysses in his thoughts. | Thus these stirrings issue forth for him in his prayer (in the form of) pure and forceful prayers | densely-packed and gushing forth in their impetus | they are in the inmost part of the heart | and are accompanied by an unswerving gaze directed towards our Lord. | It seems to that person that it is in his very body | that he is approaching our Lord at that time | because of the sincerity of the prayer’s thoughts | which rise up for him. | 32.1, p. 142