Heaven and Hell 288-289 by Emanuel Swedenborg

“Heavenly or angelic peace occurs in us when we are attuned to wisdom because of the union of the good and the true and therefore we perceive ourselves as contented in God. However, as long as we are living in this world, that peace lies hidden in our depths. Still, it is unveiled when we leave our bodies behind and enter heaven, because then those depths are opened. Since divine peace arises from the Lord’s union with heaven—and in particular with each individual angel by virtue of the union of the true and the good—when angels are in a state of love they are in a state of peace, because this is when the good within them is united to what is true. Much the same is true of us when we are being regenerated. When a union of the good and the true takes place within us, which happens principally after trials within spiritual battles, we come into a state of delight that arises from heavenly peace.”