Summary
This quote suggests that sadness serves as a barrier or obstacle that separates us from the potential happiness and joy that exist in our lives. It implies that sadness prevents us from fully experiencing the beauty and positivity that can be found in other aspects of life, much like a wall that blocks our access to a neighboring garden. Essentially, the quote suggests that while sadness may be a natural part of life, it is important to overcome it and find a way to move beyond it in order to appreciate and embrace the happiness that awaits us.