When we are suffering, we often sadly regret anything that happened, but over time we will begin to be happy, it means that we understand the unhappiness, and ready to learn and edit to make us come back happy again.
When we are suffering, we often regret the things that happened. But over time, we begin to be happy. That means we understand the distress and be ready to learn and resolve to make us happy again.
When we are suffering, we are always sad things happened. But as time goes on we will start the happy. That means that we understand the suffering and ready to learn and solve to make us be happy again.