It is really amazing how we tend to rigidify in our beliefs. Once we detect a good thought, a good method, a good anything, we hold onto that good without noticing that it too is but a puzzle piece, a part of the whole. There is always something else that is needed to complete the picture. Yet we become blind to that which could compete with our original discovery. Our Ego atttaches to what we subscribe.
Those who swear by a particular psychotherapy as a means to promote change by addressing pain and problems,cannot be convinced that there are different venues out there, venues that may be equally or even more effective.
On the other hand, those who swear by a particular transpersonal method or meditation practice to promote change by seeing and smelling the roses, cannot be convinced that dealing with pain and problems can be rewarding.
To be happy, we need to question all our beliefs, be open to new ideas, broaden our consciousness via curiosity, wonder, and kindness.
The mind is like a garden. Some of us tend only to the weeds; others only to the good seeds. Tend to the whole, and you will have balance.