Identifying Theme in a Story

Once upon a time, in a small village, there lived a kind old man named Mr. Thompson. Every day, he would tend to his garden, growing the most beautiful flowers. The villagers would often visit him to admire his flowers and enjoy the sweet fragrance that filled the air. One day, a terrible storm struck the village, destroying many homes and gardens. Despite his own losses, Mr. Thompson gathered his neighbors and offered them flowers from his garden to help brighten their spirits. He said, 'Even in difficult times, we can spread joy to others.'

What is the main theme of this story?