O God, My Flesh Faints For You (Psalm 63)

Once when Brother John was staying in the Place of Mogliano of the Custody of Fermo in the Province of the Marches...when he had proceeded as far as the Preface of the Blessed Virgin, the supernatural illumination and sweet consolation of God's love increased so much within him that when he reached the Qui pridie he could hardly endure such overwhelming sweetness. Finally, when he came to the Consecration itself and began to pronounce the words of the Consecration over the Host, he kept repeating the first of the formula - Hoc est - Hoc est - very often, and he was unable to go any further. And the reason why he could not go on was that e felt and saw the presence of Christ and of a throngof angels and saints, so that he almost fainted because of their grandur which he felt in his soul.

St. Francis of Assisi
Little Flowers of St. Francis - 53