So, yeah, I think it is a core issue in our practice because it comes up and we have to face it. Have you ever done healing work and then someone rejects what you have done? If it hasn't, it will I assure you. It certainly can shake you a bit but it can strengthen your relationship with Spirit.
I think some people go through a phase as part of their soul's cycle where they seek out, then reject, various teachings and experiences - sometimes quite angrily and virulently.
For example, proselytizing athiests like Richard Dawkins, in the public sphere, and a few people I have met in my private life who for whatever reasons cannot and will not open their minds to the possibility of any kind of God, Source, or non-material reality.
To my mind it's a bit like the way teenagers need
to rebel a bit before they can mature sufficiently enough to become a proactive part of that adult world.
This comes right after a childhood of accepting that what parents said was law, and MUST be obeyed - very similar to the way many organised religions foster their followers, and for that reason I see that relationship as no bad thing.
I'm no psychologist, but I have heard that when people are hammered into submission at that first teenage stage, they can become inneffectual as adults and unable to really take part in adult society as contributing members, though of course the reaction depends on the person.
Even toddlers have to go through a stage where "NO!" is the answer to everything, in order to learn they can seperate from the parent, have a different will and identity, and still be loved and feel secure.
So my point is, perhaps rejecting is as valable to that soul as accepting in some cases.
It may be a drag for the practitioner, but most of us didn't go into this for an easy life...