[35] and sometimes when I have come to my work empty I have suddenly become full, ideas being, in an invisible manner, showered upon me, and implanted in me from on high; so that, through the influence of divine inspiration, I have become greatly excited, and have known neither the place in which I was nor those who were present, nor myself, nor what I was saying, nor what I was writing; for then I have been conscious of a richness of interpretation, an enjoyment of light, a most penetrating sight, a most manifest energy in all that was to be done, having such an effect on my mind as the clearest ocular demonstration would have on the eyes.