Happines & Unhappiness
The key to living a peaceful life is to accept good and bad moments as they come without harboring negative feelings. The time we spend enjoying life is great, but we should also learn that suffering, unhappiness and death are also part of life and we should accept them without complaining.
In this world happiness is not permanent. We can only enjoy moments of it. We can't trap it and put it in a bottle for us. What we can do instead is to be fully engaged in the moment. We know that time is an illusion and only the moment exists, nothing more. We experience peace in our souls only when we accept each moment and live it fully.