If we want to experience happiness we must live in this moment, and savor it. We must taste life, being sensitive to the here and now. We don't want to lag behind in the past or run ahead in anticipation to future things.
Pleasure lies in the heart .
It is not something that is determined by our circumstances. Many times our experiences can be terrible or discouraging. Yet, the joy of life is not in what we know, but who we know. The Apostle Paul tells us. I have learned to be content in whatever the circumstances.