El Shaddai

This is one of God's name.  El-Shaddai means God Almighty. El points to the power of God Himself. Shaddai seems to be derived from another word, shad, meaning breast, which implies that Shaddai signifies one who nourishes, supplies, and satisfies.
 
This is a "revelation" to me, as a woman.  God created woman from Adam's side but gave only to woman one particular 'Godly nature' from Himself - His nature to nourish, supply and satisfy - by giving woman breasts.  Hence, breastfeeding becomes, to me, a reflection of God's image in us.  As parents, we are our children's first 'image' of God, the Father.  As mothers, when we breastfeed our children, it is also a portrayal of the loving Father to our children. 

The meaning and significance of 'breast'

Love, His Love

The typology of 'breast' in the Bible is affection and love.  In the Peace Offering, for instance, the children of the High Priest (signifying Jesus, our Great High Priest; and we are His 'children', part of the 'royal priesthood') receives the breasts of the offered animal as food [Lev 7:31].  In other words, Jesus (also signified by the sacrificial lamb), gave us His love to feed upon.

Another picture of His love is the breastplate of the High Priest (Jesus).  He carries the name of all 12 tribes of Israel on the breastplate of the High Priest garment.  The position of the gem stones which bore the names of the 12 tribes speaks of God's affection for His people.  Also, the names on the breastplate were always close to the High Priest's heart just as with Christ and His precious ones.

Another scene.  At the last supper, John, 'the disciple whom Jesus loved', was leaning on Jesus' bosom.  Let me say it another way : John, 'the disciple whom Jesus loved', was leaning on Jesus' love.  Has it ever occurred to you that it was John himself who claimed that he was the 'one whom Jesus loved'?  Kind of thick-skin, isn't it?  And isn't it 'coincidental' that the only time the Bible mentioned about Jesus' bosom has to do with someone 'whom He loved'?  I am sure Jesus loved everyone of His disciples, including Judas Iscariot, but John, who leaned on Jesus' love, seemed to be the only one who truly knew that he was loved.

Now for some Bible verses.

Yet you brought me out of the womb; you made me trust in you even at my mother's breast.

(Psalms 22:9 NIV)

"Rejoice with Jerusalem and be glad for her, all you who love her; rejoice greatly with her, all you who mourn over her.
For you will nurse and be satisfied at her comforting breasts; you will drink deeply and delight in her overflowing abundance."

 For this is what the LORD says: "I will extend peace to her like a river, and the wealth of nations like a flooding stream; you will nurse and be carried on her arm and dandled on her knees.
As a mother comforts her child, so will I comfort you; and you will be comforted over Jerusalem."
(Isaiah 66:10-13 NIV) 

It is clear from the two verses above that breastfeeding provides more than just nutrients to a baby.  A baby draws comfort as well as learn to trust while nursing at the mother's breasts.  It seems to me that God designed mothers to bond with their babies through breastfeeding and through this bonding, the child catches the first 'glimpse' of God's loving nature.