A close obseravtion of our emotional live reveals there are subtle ups & downs; quite appart from the more gross emotions we experience through out our lives.  The small, clear highs ofter lasting only seconds can be easily missed.  I call them blips.  Not the negative 'blip' seen on the computer screen starting a nuclear war type of blip but the subtle pleasant blips - a little bubble of wonderful emotion which may be triggered by a past memory or experience or some aspect of that experience.  These make life sooo pleasant and memerable - even if in the end it is know there is no-one here to experience it all, but the pure experience is quite remarkable in itself.