The Eucharist is in the canter in the Churches spiritual life. This thesis will try to explain how the Eucharist is the source of Christian spirituality. To do that we will first explain how the Eucharist functions as a sacrament, we will see why it is a sacrament of initiation, as well as how it is celebrated. We will also see the relationship between the Eucharist and the other sacraments. The second part of the text will examine how the Eucharist fits into the history of salvation. First in the form of an icon, then as an event and finally as a sacrament. The third part of the thesis will try to explain how to properly live spirituality with the Eucharist as its heart. To that end we will show how to properly participate in the liturgy. After that we will show how the practice of bowing in front of the Christ is one of the best ways to contemplate. We will show the importance of following the example of Christ as a form of piety. At the end of the third part we will show how the virgin Mary serves as an example of Christian spirituality. The final part will show the fruits of the Eucharist. We will show the fruits of the Eucharist in the life of individuals. Then we will show how the Church forms around the Eucharist as well as showing why the Eucharist is a source of hope for the afterlife. Finally, we will show examples of those who participate in the Eucharist