A Blurb on the Eucharist from the Catechism

As we approach the Bread of Life discourse, I thought this quote from the Catechism (#1106) was very insightful:

You ask how the bread becomes the Body of Christ, and the wine...the Blood of Christ, I shall tell you: the Holy Spirit comes upon them and accomplishes what surpasses every word and thought...Let it be enough for you to understand that it is by the Holy Spirit, just as it was of the Holy Virgin and by the Holy Spirit that the Lord, through and in himself, took flesh.