It was when Christ had redeemed us, and we in Him had received the position of children, that the Father sent forth the Spirit of His Son into our hearts to cry, 'Abba, Father.' The worship in spirit is the worship of the Father in the Spirit of Christ, the Spirit of Sonship.
In our being made strong to apprehend with all the saints what is the breadth and length and height and depth, and to know the love of Christ which passeth knowledge. It is not enough that we love, we must know the love of Christ, but that love passeth knowledge.