Communion is a word established by man made religions.

Jesus broke the bread, and said take this in remembrance of my flesh that I gave for you, take this wine in remembrance of the blood I shed for you.  He also said he was the bread that people needed to eat and his blood for them to drink.

Not literally do we do that, but spiritually we partake of him in the way he showed us.

How many hands have touched those little wafers that they give at designated churches.  Prepared by many sinners sometimes.  How many churches are built with sinner's hands.  Mankind cannot make it Holy, only your love of Jesus in your very soul makes it pure.

How about the pastor, or minister, or priest?  Have they been ordained by God or mankind.  You know a good tree by the fruit it produces.  A bad tree cannot produce good fruit.  Jesus said I am the good tree, and every branch that does not produce good fruit is cut away by my Father.

If you have not given your heart and your very life to Jesus, and are walking the righteous path then you are making a mockery of what he asked us to do at his last supper here on earth.  You are signifying that you are remembering him and what he sacrificed for us, but living in sin. 

You cannot live in sin and know Jesus Christ.