Ven. Rev. Martin von Cochem (‘The Last Things’):
“On one occasion, when the devil was speaking by the mouth of a person who was possessed, he said :
‘If the whole heavens were a sheet of parchment, if the whole ocean were ink, if every blade of grass were pen, and every man on earth a scribe, it would not suffice to describe the intense, immeasurable delight which the vision of God affords to the blessed.’
And at another time he said that if God would but vouchsafe to grant him the privilege of beholding His divine countenance for a few moments, he would, if it were possible, gladly bear in his own person all the torments of hell until the Day of Judgement. This teaches us that if a man spent his whole life in works of most severe penance, and after his death were permitted only for one instant to gaze on the face of God, he would have received an ample recompense for all his mortifications.”
Rev. Martin von Cochem is right. In fact, the truth of his words are confirmed by a revelation given to a holy Visitation nun, Sr. Marie–Catherine Putigny, to whom a deceased sister appeared, saying:
“What are all the sorrows of earth compared with the happiness of seeing God for even one instant!”