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.
Happiness, sorrow, victory, defeat, day-night are the two sides of the me coin. Similarly life is full of moments of joy, pleasure, success and comfort punctuated by misery, defeat, failures and problems. There is no human being on Earth, strong, powerful, wise or rich, who has not experienced, struggle, suffering or failure.