In the case of depression, the following essences can be of great assistance.
Elm– If one is feeling despair, especially in reference to meeting expectations and/or fulfilling responsibilities.
Gentian– Lack of faith; feeling a lot of doubt and discouragement from set backs.
Gorse– For one who is really in a deep depression, they expect suffering, and are very hopeless.
Mustard– For one who feels as though there is a “black cloud” hanging over their head.
Pine– Depression from past choices one has made.
Sweet Chestnut– “The dark night of the soul” this is for one suffering extreme anguish.
Wild Oat– This is a great essence when depression is set around life purpose and anything work related.
Wild Rose– Depression when facing or faced with a health related issue.
Essences can be combined and taken together if you are unsure of what specific essence you need, it is beneficial to work with a flower essence practitioner in cases of serious depression, but the above listed remedies have the positive potential to bring a much improved state of being.