The trouble with legalism is that it is fear based and fails to realize that all things are ours in Christ. Man was not made for the Sabbath, but the Sabbath for man.
The trouble with anti-nomialism (prodigality) is that it fails to see that the law of God is the way of life.
I am always inclined toward both because I am always forgetting that I am the Temple of the Living God.
A. W. Tozer once wrote:
Deep inside every man there is a private inner sanctum where dwells the mysterious essence of his being....