(a person who may be a saint?)
Do we have any evidence whatsoever that the person she is attempting to communicate with is a saint?
No?
If your attempts to favorably interpret people’s actions favorably go to the extent of considering aspects for which there is not a shred of evidence, then I think you are going too far. Making this type of evidence-free assumption in order to pursue the favorable interpretation is going beyond the bounds of reality.
What does CCC2478 actually say?
2478 To avoid rash judgment, everyone should be careful to interpret insofar as possible his neighbor’s thoughts, words, and deeds in a favorable way:
Every good Christian ought to be more ready to give a favorable interpretation to another’s statement than to condemn it. But if he cannot do so, let him ask how the other understands it. And if the latter understands it badly, let the former correct him with love. If that does not suffice, let the Christian try all suitable ways to bring the other to a correct interpretation so that he may be saved.
Look at the first part I bolded: insofar as possible. There is a boundary to this. If you see your married brother passionately kissing a shapely young woman not his wife, it is theoretically possible to think, Oh, how nice! He is saving her life by giving her artificial respiration!
But is it reasonable?
So now I have seen my brother doing this and I cannot think he was giving this woman artificial respiration. They were standing, first of all, and when they parted, she had no trouble walking. It seems
unreasonable to think this was artificial respiration.
So I think this is a case of a man stepping out on his wife.
By thinking this, am I doing the wrong thing? By considering all the evidence and rejecting the unreasonable but “more favorable” interpretation of artificial respiration, I am dealing with truth rather than with a made-up falsehood which allows me to maintain my self-image of what a good Christian should be like.
And I am now in a position to look at the next bolded part from CCC2478: to ask my brother how he understands the passionate kissing of a woman not his wife? And (4th bolded part) to correct him with love and find all
suitable ways to bring him to an understanding of the wrong he is doing.
Do you see how wrong it would have been to hold to an unreasonable, but favorable, interpretation of what was happening?
Do you see how holding a reasonable, but unfavorable, interpretation would have prevented my helping my brother to come to a better understanding of what he should do?