Phytobiophysics Flower Formula FF4 Thistle is a powerful and masculine flower essence. It may help to improve male bonding, particularly between father and child. It is thought to soften dominating male egos and may also help with the absence of a male/father presence in one's life. This natural flower remedy is also said to be helpful with negating nightmares, bad dreams, restlessness and disturbed sleeping patterns. It can help with troubled thoughts and act as a tonic for the nervous system.