Psychic powers in May Sinclair's Flaw in the Crystal: Part IV

I find some elements of the plot of May Sinclair's novella The Flaw in the Crystal contrived and confusing. 

The final resolution of Agatha Verrall's dilemma in particular seems unconvincing and unsatisfactory. She finds a solution to her difficulties that leaves some questions unanswered and some issues unaddressed.

Agatha Verrall's dilemma

We left Agatha Verrall in a situation where she is damned if she uses her gift to heal people remotely and damned if she doesn't.

Taking away people's suffering means becoming possessed by her subjects' former mental states: the psychic connection is a two-way street. The links that she creates between herself and her subjects may be also be cross-contaminated such that one subject can get at another.  

Cutting ties with people who have been healed means that their mental anguish returns. This entails watching them suffer and coming under both internal and external pressure to resume the healing. 

It would be an ideal solution to this predicament if Agatha could only use her Power without anyone involved experiencing any unpleasant side-effects.

This is much easier said than done, but Agatha eventually finds the way. Things get worse before they get better though.

Agatha Verrall cuts the tie with Harding Powell

Agatha Verral decides that saving Rodney Lanyon is more important than anything else. This entails sacrificing Harding Powell's health by cutting the tie that binds him to her. 

Harding puts up a big fight, hanging on desperately and tearing down the psychic walls she builds as fast as she can build them, but eventually with help from the Power she loosens his hold, casts him out and escapes from his malign influence.

Harding reverts to his former state. Poor Milly is distraught again and begs for the help that she knows Agatha can give. 

Agatha Verrall sees the light 

Agatha has always had the conviction that the Power she taps is benevolent. So, if it is so high, holy, sacred and pure, how can something like this awful mess happen? Why has her gift brought so much suffering to people?

Psychic powers in May Sinclair's Flaw in the Crystal: Part III

Just as Sir Arthur Conan Doyle's The Parasite does, May Sinclair's novella The Flaw in the Crystal shows how dangerous playing around with occult forces can be for everyone involved. It is not just evil witches such as Helen Penclosa who end up in big trouble: after Agatha Verrall heals two of her friends using a pschic gift that she doesn't fully understand, things start to get unbalanced and out of control. She soon finds herself in a horrible mess of her own making.

May Sinclair gives a very detailed account of what happens next; she also has a lot to say about the Power that operates through Agatha. It is quite a challenge to identify the key points!

The regression of Rodney Lanyon

Agatha Verrall does not see her friend Rodney Lanyon for some weeks. She hears from him that his wife Bella is still well, so she assumes that he is too because he was only ever ill because of Bella. 

Agatha has been using her gift to keep him away; she has removed his strong inclination for her company. This is another unwise decision: she now feels a longing for his company! Something similar to the conservation of energy is involved here: the feelings that she took away from Rodney are now hers.

These feelings become so persistent amd so unbearable that she cuts the thread that connects her to Rodney. She hears from him again: Bella is still well, but he has has gone back to where he was before Agatha started to heal him:

“She might have known it. She had in fact known. Having once held him, and having healed him, she had no right—as long as the Power consented to work through her—she had no right to let him go.“

But what right did she have to hang on to him?