Frustration is a lightning bolt, which destroys many things that were originally intact. However, it lights up the dark sky. When you encounter difficulties, it disturbs your thoughts, but takes the opportunity to push you and let you know that this world is full of thorns. Frustration is a storm, which washes away the hard work and the scorching sun. It is so sudden, without telling you, so that you can't avoid it. But because of this, you decide to work hard and develop new virtues. It may extinguish your enthusiasm, but the dark clouds will eventually dissipate.