New always has a value over old and usually more cares and pampered. This is a normal human nature towards new. Secondly all new stuff looks more fresh and renewed, more clean and approachable. When we expect anything new we go for a physical verification or confirmation. This physical confirmation is based on our 5 senses, which again is a human nature as we are made to feel and experience through our senses. This nature will in turn avoid us from experiencing things which are new but cannot be experiences by our physical senses.
One example is happiness, we cannot experience happiness through any of our senses... its a change that we feel within us yet with no physical verification. The result of acknowledging this new in us will help us change our attitude towards a situation. If we are sorrow and dull in life which again cannot be verified by our senses can result in our physical nature changed to a negative aspect.