World around, and everything in it, as we see would change (hard to accept sometime but that is a fact; change is the only constant!) because change is its very nature. (What is perceived as) fortune and misfortunate, pleasure and pain, birth and death happens. (There is nothing, seriously, anyone can do about these. It may be hard to accept , and many have tried to sugarcoat it. Yet the fact is world around does not go by your dictates or wishes).
(When you hold on to anything, there is subjective perception and it hurts sooner or later). Do not hold on to anything. Realize that neither you are the body nor you have a body. Then, for you, everything becomes a simple experience of a pure consciousness, pure awareness.
Cosmic beauty reveals itself as a realization. Realization of God, and that God created the world and everything in it. Everything that we perceive, including God, is only a perception. The only reality is self.
There is nothing to gain or lose. There is nothing to be happy or sad, There nothing to do or not to do. (It does not mean inaction. It is, in fact, the most powerful form of action)
These reminds me of a zen story that I heard sometime back which goes as follows:
Once upon a time, a someone approached Zen master and asked him to write something for his family to keep for years to come.
Master wrote: “Father dies, son dies, grandson dies.”
The man became very angry asked the master: “I wanted you to write something good for my family. Why have written something so bad?”
Master replied: “If your son die before you die, it would be very sad experience for your family. Again, if your grandson die before your son, that would also be very sad. Everyone has to die one day or other. If everyone in your family die in the order that I described, for generations after generations, then that is a natural order of life. That, in itself, is a reason for being happy. If it does not, it is unfortunate”