There are lots of times when we go through endless jungles full of darkness or desserts in forever drought. These are also the times when we forget to look around to see wild roses in full bloom; we forget to understand what lessons things could tell us-- just like a cactus standing strong even when alone.
Life as we do not know gives us the answers readily programmed the moment we wonder why we are alive; why we have to feel sad about what is happening.
The saddest moments in life will give us the idea on how happy we will be sooner or later.
Even people with mood disorders have to know and keep in mind that their feeling of being so low will soon be back to normal.