Difficulties test the courage, patience, perseverance and true character of a human being. Adversity and hardships make a person strong and ready to face the challenges of life with equanimity. There is no doubt that there can be no gain without pain. It is only when one toils and sweats it out that success is nourished and sustained.
Thus, life is and should not be just a bed of roses; thorns are also a part of it and should be accepted by us just as we accept the beautiful side of life.
The thorns remind one of how success and happiness can be evasive and thus not to feel disappointed and disheartened rather remember that the pain of thorns is short-lived, and the beauty of life would soon overcome the prick of thorns.