In preparing for my recent Divine Mercy talk, I came upon two prayers of St. Faustina that capture what it means to live a Eucharistic life. This is the spirituality that we propose in the Apostleship of Prayer--to live the Eucharist in daily life by making an offering of ourselves one day at a time. What empowers us to do this is our union with Christ and the transformation that follows. I think these two prayers from St. Faustina's Diary express that mission and desire of ours.
Most sweet Jesus, set on fire my love for You and transform me into Yourself. Divinize me that my deeds may be pleasing to You. May this be accomplished by the power of the Holy Communion which I receive daily. Oh, how greatly I desire to be wholly transformed into You, O Lord! [#1289]
Jesus, make my heart like unto Yours, or rather transform it into Your own Heart that I may sense the needs of other hearts, especially those who are sad and suffering. May the rays of mercy rest in my heart. [#514]