Nope...The cracker can't get beyond that barrier that separates the body and the bones from the soul and the spirit...
The cracker only goes into the flesh...Jesus goes into the soul...You can't put a cracker into your soul and you can't put Jesus into your flesh...
http://biblos.com/john/3-5.htm
http://www.biblegateway.com/passage/?search=John+3&version=NIV
John 3:3 In reply Jesus declared, “I tell you the truth, no one can see the kingdom of God unless he is born again.”
4”How can a man be born when he is old?” Nicodemus asked. “Surely he cannot enter a second time into his mother’s womb to be born!”
5Jesus answered, “I tell you the truth, no one can enter the kingdom of God unless he is born of water and the Spirit. 6Flesh gives birth to flesh, but the Spirit gives birth to spirit. 7You should not be surprised at my saying, ‘You must be born again.’ 8The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. So it is with everyone born of the Spirit.”
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Being born of water is the physical birth. Verse six lays to rest the contention that eating the Eucharist does anything spiritually.
In the Eucharist you get the spiritual food that is Christ, you celebrate the Risen Christ and His one time sacrifice that saved you. You can experience a personal relationship with Christ in the Eucharist. Your mind, body, soul, spirit experience Christ in the fullness of Christ, with the blessings of the Father and the care of the Holy Spirit.