491. I again heard the hymn-singers, or those who were singing the praise of our Savior, about diverse objects by means of representations and ideas. There were a number of choirs together, and still it was one choir consisting of very many, and at the same time acting as one, without confusion from one another: thus they acted as one upon the other, or within the other, and also outside the other. In this way the universal angelic heaven is accustomed to be devoted to the praise and glory of the Savior. Hence with the heavenly ones there is such delicious musical harmony and singing, when the thoughts of man are concordant with their ideas, as I have often experienced in churches: the angelic choirs have been concordant with a more interior perception of gladness credible to none, thus ineffable. 1748, Jan. 21.