God calls the children to Him, and He calls us to come to him as children. We too often think of this as a call to simplicity before God. Come to him full of joy and whatever else you think a child looks like. What we hardly ever consider is that the context of the passage presents children as despised individuals. In that time, children were heavily looked down upon. They were considered of no account. We are too associate ourselves with children in the realization that we are all beggars at the door of God's mercy, love, blessing, and grace.
We have to come before God as needy people who honestly admit and accept our need. God longs to love the unraveled hearts, the broken down and the poor. We have to come to God as children, because God longs to love His children who are otherwise despised. We are ALL needy people, and we lie to ourselves if we deny that.
So I run to my heavenly Abba...my DADDY as a child who recognizes a need...I am a broken ragamuffin bested by life struggles, fights and inconveniences, inconsistencies and insecurities.