Receiving Jesus in Holy Communion was the most solemn moment of St. Faustina?'s life. She wrote in her Diary, O what awesome mysteries take place during Mass! In this small book, you ll journey in Eucharistic prayer with Sister Maria Faustina of the Most Blessed Sacrament. You will discover in more than 80 excerpts from her Diary why the Eucharist was the key to her life and how it can transform your spiritual life today. O Blessed Host is ideal for use before or after Holy Mass or in adoration before the Blessed Sacrament.