Classical Sufism is such a perfect way. The knowing of surrender is so easy when understood properly.
It's reasonably simple.
Surrender is the source of harmony, and contention is the root of discord. When one is in contention, one is not in surrender. If you are in contention with your self (which is the case for almost everyone), you are probably in need of help or stuck forever. But if you are fortunate enough to find yourself in contention with a Sufi master, then the problem is resolved by simple surrender.
The nature of the `idhn (divine permission) of the Sufi master is that it is not to be argued with. It is an absolute authority, not based on the correctness of opinion, and completely independent of your approval. If you are beloved, you will not be argued with, but simply forced, by love, into surrender.
Surrender implies the attainment of harmony (happiness) through the release of contention, not through the winning of argument. The point of the master is never who's right. The point is always your surrender (happiness) and eventual ability to recognize the difference between its presence and its absence.
In surrender, nothing needs to be proven. All things flow easily and naturally. The flavor of surrender to a Sufi master is the flavor of surrender to The Divine. When you are at peace with a Sufi master, you are at peace with Allah. And when you are not, you are not.
peace of mind.
need is lost, and the field of the heart discovered,
self is content to abide in the field of truth.
It is in the surrouindings of peace that the student who is willing to give up everything will have the opportunity to discover this true being, the truth of their reality, allowing it to emerge.