Growth is a natural and expected part of the human experience. Growth should be a natural and expected part of the religious experience.
Nothing is more beautiful to parents than a new baby.
If, however, as the weeks passed, that baby showed no signs of development and growth, the same parents would rightly be concerned. The same thing should be true in our religious experience. We are born anew into the kingdom of God as babies, yet God does not intend for us to remain babies. Yet all too often those admitted to Christ's religion are content to remain spiritual pigmies. By heresies I mean inadequate or incomplete views of God.