Jesus is smart. He knows ordinary and /or mundane things or acts are easily forgotten. So, he commanded His disciples to keep repeating the Lord's Supper to remember what He did to cleanse us from our sins. Repeating an action becomes a habit. A habit becomes a part of our life. So that, when we miss or skip a particular habit, we look for it or hunger for it. An emptiness or a lack is created in us. In short, a "felt need" is created in our christian life. The more you grow in faith, the more you appreciate the meaning of Jesus ' last meal with His disciples. Thus, the practice of partaking of the bread and wine becomes "one of those habits" to "a good habit" to "a vital habit" to "a habit you cannot let go" in your walk with God.