Red Chestnut fears are natural, normal concerns magnified to the point where they have a negative effect on the people who are the object of concern, undermining their confidence and self-belief.
When we are in this state the remedy helps us send out calm, unworried thoughts to our loved ones, so that instead of making everyone anxious we are rocks on whom others lean.
For those who find it difficult not to be anxious for other people. Often they have ceased to worry about themselves, but for those of whom they are found, they may suffer much, frequently anticipating that some unfortunate thing may happen to them.
– The Twelve Healers and Other Remedies