Do we have a polarity that must be a certain setting that governs whether our healing requests can work? What is it that the healer we know of [name withheld] is manipulating by “reversing polarity” to remove blocks to healing?

There are many polarities, and this is a reflection of the fact that in the duality you inhabit everything has an opposite. So for a love impulse there is an anti-love impulse. For the good there is the bad, and every type of energy has a counterpart that will work against it, very much as matter and anti-matter co-exist but are not compatible. So in a sense, the polarity represents the state of positivity in the desires and intentions for a state of harmony, and a switch in polarity is a return to discord and disharmony. It can apply to many types of energies, and depending on the way consciousness operates, the metaphor of positive and negative can be brought to bear on many, many, things going on within the person. This will be unique to the individual in terms of their understanding and awareness of their own energy fields and their own dilemmas, mental emotional, spiritual, and energetic. And so this is an interesting approach and has value for a person who can use it in an effective way to surmount certain types of disharmony within their being, but it has the pitfall of becoming entrained to phenomena that are not understood and are only poorly managed by an individual. And then this can get out of hand, so to speak, and cause much frustration. It is somewhat analogous to a child attempting to drive a vehicle who does not have the coordination and reach of the adult. And so the car will lurch, and may in fact hit the curb in not being steered for a time because attention is elsewhere, learning to use the gas and the brakes. So this is what your friend is experiencing, jumping into the deep end of the pool with a general request that may be applied, in turn, to quite a varied array of phenomena, and the consequences that ensue may or may not be helpful, and may or may not bear fruit. If the focus in assigning polarity and making a conscious change is being applied to something quite labile, then tying that to an outcome in the mind will be a recipe for disaster because the labile phenomenon will be modulating and the outcome linked to this by conscious choice will actually suffer. And there will be little likelihood of stability because you are tethering your future to a wild stallion, in a sense. So this is something that requires experience and a level of sophistication to use with confidence, but it is a somewhat crude and unreliable tool because of the lack of specificity. It would be better to focus on the outcome desired rather than to focus on a vague description of some control mechanism and focus on changing that when you may not be aware of what it governs and what the chain of events might be that come from tinkering with it. So this is the answer here, to focus more on the specific changes desired rather than a tool that may or may not have a direct linkage to what you wish to happen.