God The Father describes Heaven to Saint Catherine of Siena
St. Catherine of the Siena (1347-1380) wrote down what God the Father told her about Heaven. From her famous Christian work The Dialogue of Saint Catherine of Siena (excerpts are below).
Of the glory of the Blessed. “Similarly, the just soul, for whom life finishes in the affection of charity and the bonds of love, cannot increase in virtue, time having come to naught, but she can always love with that affection with which she comes to Me, and that measure that is measured to her. She always desires Me, and loves Me, and her desire is not in vain — being hungry, she is satisfied, and being satisfied, she has hunger, but the tediousness of satiety and the pain of hunger are far from her. “In love, the Blessed rejoice in My eternal vision, participating in that good that I have in Myself, everyone according to his measure, that is that, with that measure of love, with which they have come to Me, is it measured to them. “Because they have lived in love of Me and of the neighbor, united together with the general love, and the particular, which, moreover, both proceed from the same love. And they rejoice and exult, participating in each other’s good with the affection of love, besides the universal good that they enjoy altogether. And they rejoice and exult with the angels with whom they are placed, according to their diverse and various virtues in the world, being all bound in the bonds of love. “And they have a special participation with those whom they closely loved with particular affection in the world, with which affection they grew in grace, increasing virtue, and the one was the occasion to the other of manifesting the glory and praise of My name, in themselves and in their neighbor; and, in the life everlasting, they have not lost their love, but have it still, participating closely, with more abundance, the one with the other, their love being added to the universal good, and I would not that you should think that they have this particular good, of which I have told you, for themselves alone, for it is not so, but it is shared by all the proved citizens, My beloved sons, and all the angels — for, when the soul arrives at eternal life, all participate in the good of that soul, and the soul in their good. “Not that her vessel or theirs can increase, nor that there be need to fill it, because it is full, but they have an exultation, a mirthfulness, a jubilee, a joyousness in themselves, which is refreshed by the knowledge that they have found in that soul. They see that, by My mercy, she is raised from the earth with the plenitude of grace, and therefore they exult in Me in the good of that soul, which good she has received through My goodness. “And that soul rejoices in Me, and in the souls, and in the blessed spirits, seeing and tasting in them the beauty and the sweetness of My love. And their desires forever cry out to Me, for the salvation of the whole world. And because their life ended in the love of the neighbor, they have not left it behind, but, with it, they will pass through the Door, My only-begotten Son in the way that I will relate to you. So you see that in those bonds of love in which they finished their life, they go on and remain eternally. They are conformed so entirely to My will, that they cannot desire except what I desire, because their free-will is bound in the bond of love, in such a way that, time failing them, and, dying in a state of grace, they cannot sin any more. “And their will is so united with Mine, that a father or a mother seeing their son, or a son seeing his father or his mother in Hell, do not trouble themselves, and even are contented to see them punished as My enemies. Wherefore in nothing do they disagree with Me, and their desires are all satisfied. “The desire of the blessed is to see My honor in you wayfarers, who are pilgrims, forever running on towards the term of death. In their desire for My honor, they desire your salvation, and always pray to Me for you, which desire is fulfilled by Me, when you ignorant ones do not resist My mercy. They have a desire too, to regain the gifts of their body, but this desire does not afflict them, as they do not actually feel it, but they rejoice in tasting the desire, from the certainty they feel of having it fulfilled. Their desire does not afflict them, because, though they have it not yet fulfilled, no bliss is thereby lacking to them. Wherefore they feel not the pain of desire. “And think not, that the bliss of the body after the resurrection gives more bliss to the soul, for, if this were so, it would follow that, until they had the body, they had imperfect bliss, which cannot be, because no perfection is lacking to them. So it is not the body that gives bliss to the soul, but the soul will give bliss to the body, because the soul will give of her abundance, and will re-clothe herself on the Last Day of Judgment, in the garments of her own flesh which she had quitted. “For, as the soul is made immortal, stayed and established in Me, so the body in that union becomes immortal, and, having lost heaviness, is made fine and light. Wherefore, know that the glorified body can pass through a wall, and that neither water nor fire can injure it, not by virtue of itself, but by virtue of the soul, which virtue is of Me, given to her by grace, and by the ineffable love with which I created her in My image and likeness. “The eye of your intellect is not sufficient to see, nor your ear to hear, nor your tongue to tell of the good of the Blessed. Oh, how much delight they have in seeing Me, who am every good! Oh, how much delight they will have in being with the glorified body, though, not having that delight from now to the general Judgment, they have not, on that account, pain, because no bliss is lacking to them, the soul being satisfied in herself, and, as I have told you, the body will participate in this bliss.”