The Universe is Dual

How could have I not noticed this earlier? I must have read Dogen talk about duality a dozen times but it was not sinking in. Anyhow, it came to my attention that Universe is dual in nature..it is its suchness..there is heat and cold, black and white, summer and winter, happiness and sadness etc etc. One does not come without the other! It is a package deal!!! Oh my my..is that right? It is a package deal? I only want good, warmth, summer, light, happiness etc etc and not the other part. But how is that possible? The universe cannot hand anything out without its counter part. Day will come with night, summer with winter and happiness (the kind that you get when your wish is fulfilled) with disappointments! Well, no one told me that!!!! Can we accept the reality that one pole does not exist without the other and hence we cannot expect that we can get only half the package every time? What is the difference in expectations and attitude when we start accepting the package and not just one half? Think about it.