What makes life refreshing? Newness! New ideas, new experiences, new people, new cells in our body, new sensations, new awareness. Newness! Newness is Expansion Manifest. Death therefor is necessary and is really essentially just the releasing of the old so that life may be refreshed. I would say this is the core essence of why things feel so refreshing. We've somehow come to release the old and embrace the new.
This leads me to suggest we ask ourselves this one Question:
What is ready to be refreshed?
Don't try to answer it. As an answer is the end of inquiry. Rather try looking at what ever ideas come to you, or what ever awareness comes to you as simply an idea, a possibility. And because it came up see if you are attached to anything about it and realize that when you can let go of that attachment then you have opened a possibility to the NEW, and thus Feeling invigorated and refreshed.
Old things, in all categories begin to decay because Consciousness is ready to move onto something NEW! It is also why all forms of stimulus (alcohol, drugs, old movies, old music) eventually lose their effect, so that we can keep moving on to something new and vibrant and refreshing!
----> LIFE KEEPS EXPANDING! <----
Newness is what makes everything exciting too! The joy is in the journey because it is in the very nature of our being to experience more and more and new and exciting experiences. Thus Death is not the end but just consciousness saying "Okay this life has given me all it can, I'm ready for something NEW!" So we leave the body and go for a brand new one. Life and Death is happening all the time. Life becomes no fun when we hold onto things that have lost their ability to stimulate our consciousness into expansion.
When you ask what is ready to be refreshed I feel it is best to take a step back and detach from everything with your consciousness, yet at the same time feel all things deeply. If something feels old and ready to be refreshed recall the feeling of Newness and let go of the old. You might first sit and recall those feelings of being refreshed first. Those times in life when you felt a truly NEW experience invigorating you. The easiest way I can think of finding these it to think of you FIRST of everything. Find the most stimulating ones and make a short list. It may have been your first detox, your first roller coaster ride, the first time you met someone, the first time you passed a test, or went down a water slide, or perhaps your high school crush asked you out. When you have a feel for newness, feel how good it would be for this area that is ready for change to be refreshed. All it takes is awareness and release.
All things creative.