The fullness of the Spiritual life is a heart inspired by love that walks in responsibility.
Jesus, our Pattern and Teacher, was a man under authority. Much was given to Him, and much was required of Him from the Father.
When the Life of the Spirit and the love of our Savior grows to such a point, it encompasses and takes the place of every other thing. It is our all in all. While for some, this may come quickly, for others, it has grown over time.
But, the place of the Spiritual man is life in Christ.
There is no life in another. He is the Way, the Truth, and the Life.
For Paul said that when our obedience is made perfect, our every disobedience would be punished.
Is this at odds with the Cross and the Grace of God? No more than continuing to sin that Grace would abound.