When we think there is no light at the end of the tunnel, then we need the Sweet Chestnut. This Remedy helps with conditions of deep hopelessness and despair, when mind and soul are utterly tormented and we cannot find a way out of the situation no matter how we search for it, whatever we do. We have exerted all possible efforts and have come to the very edge of our own powers, even human power itself. The Sweet chestnut helps to overcome this tormenting condition, and thus fills us with compassion and responsiveness to the suffering of those around.
For those moments which happen to some people when the anguish is so great as to seem to be unbearable. When the mind or body feels as if it had borne to the uttermost limit of its endurance, and that now it must give way. When it seems there is nothing but destruction and annihilation left to face.
"The Twelve Healers and Other Remedies"