Luke 18:16 But Jesus called the children to him and said, “Let the little children come to me, and do not hinder them, for the kingdom of God belongs to such as these.
This moment when Jesus tells the disciples to allow the children to come to Him because they are the ones who will listen how He wants them to listen – openly!
As we grow up, we carry more and more baggage with us in the form of opinions we build up. Those are often counter productive to Christ and His ways.
God wants us to be able to come to Him with all innocence and with an open heart and mind, willing to listen and obey without question!