Spiritual healing requires the Holy Spirit, the grace of God, and the blood of Christ. We may have to forgive, reconcile relationships. That can be hard and painful work, much harder than the physical rehab after a knee surgery, for that pain is deep in the soul. Problem is, like a knee, if we do not go through the process, neither the knee nor our Christian life will function well again. The knee will not flex. Spiritually we will be beset with bitterness, lack of trust, self protection, anger, to name a few.
It is not a good way to live.