During her short life, St. Faustina drew much of her strength from spending time in adoration of the Holy Eucharist. She knew that it was not a piece of bread that she saw, but Jesus himself, hidden, but truly present.
Here is one of the many prayers that she prayed while adoring Jesus in the Blessed Sacrament.
I adore You, Lord and Creator, hidden in the Most Blessed Sacrament. I adore You for all the works of Your hands, that reveal to me so much wisdom, goodness and mercy, O Lord. You have spread so much beauty over the earth and it tells me about Your beauty, even though these beautiful things are but a faint reflection of You, incomprehensible Beauty. And although You have hidden Yourself and concealed Your beauty, my eye, enlightened by faith, reaches You and my soul recognizes its Creator, its Highest Good, and my heart is completely immersed in prayer of adoration.
My Lord and Creator, Your goodness encourages me to converse with You. Your mercy abolishes the chasm which separates the Creator from the creature. To converse with You, O Lord, is the delight of my heart. In You I find everything that my heart could desire. Here You light illumines my mind, enabling it to know You more and more deeply. Here streams of graces flow down upon my heart. Here my soul draws eternal life. O my Lord and Creator, You alone, beyond all these gifts, give Your own self to me and unite Yourself intimately with Your miserable creature.
O Christ, let my greatest delight be to see You loved and Your praise and glory proclaimed, especially the honor of Your mercy. O Christ, let me glorify Your goodness and mercy to the last moment of my life, with every drop of my blood and every beat of my heart. Would that I be transformed into a hymn of adoration of You. When I find myself on my deathbed, may the last beat of my heart be a loving hymn glorifying Your unfathomable mercy. Amen.