Mystery cannot be explained and understood with the intellect alone. That’s why the Educated Scribes and Pharisees could not grasp Jesus’s message. Rather it was simple, uneducated people and little children who understood His message with their hearts because they were humble and hungry; they needed more than their mundane life could supply. The simple stories which Jesus told did not explain spiritual truths intellectually but His parables reached their hearts and fed their inner spirit.
I discovered a fascinating list of biblical symbols at http://www.biblegateway.com/resources/dictionary-of-bible-themes/1670-symbols based onDictionary of Bible Themes Scripture index copyright Martin H. Manser, 2009.
Objects, actions or creatures that have a deeper significance and are so understood by those who see them or use them.Symbolic objects
The pillar of cloud and fire: a symbol of guidance Ex 13:21
Fire: a symbol of the Holy Spirit Ac 2:3
Stars and lampstands: symbols of God’s ministers Rev 1:20
The human body: a symbol of interdependence 1Co 12:27
A lamb: a symbol of Jesus Christ’s sacrifice Rev 5:6
Breaking a jar: a symbol of the destruction of Jerusalem Jer 19:10-11
Washing hands: a symbol of innocence Mt 27:24
Covering the head: a symbol of submission 1Co 11:3-10Symbols expressing God’s nature and character