53. As an entire society is a heaven in a smaller form, so an angel is a heaven in the smallest form. For heaven is not outside of the angel, but is within him, since the interior things which belong to his mind are arranged into the form of heaven, thus for the reception of all things of heaven that are outside of him. These also he receives according to the quality of the good that is in him from the Lord. It is from this that an angel is a heaven.