[15] For the well-arranged and carefully attuned melody of that harmony which is perceptible by the intellect, the invisible musician, perceptible by the intellect, is alone able to comprehend; but no one of those involved in the entanglements of the outward senses can appreciate it. Accordingly, when the entire organ of the mind sounds according to the symphony of the diapason and of the double diapason, the hearer, as it were, asks (for he does not ask in reality, since everything is known [10] to God), "Why dost thou cry unto me?" Is it in supplication that evils may be averted, or in thankfulness for a participation in good things which have been already enjoyed, or for a combination of both reasons?