Contrast In Nature, Contrast in Life

Today April and I found ourselves on a long drive enjoying the day, as we chatted we happened upon Deer Creek Park so we decided to check it out. As we walked around the park totally alone I might add
I started to think about contrasts in life. 
Yin & Yang , 
light & dark, 
fire & ice.
I have to say the contrast in my life is my April. Contrast changes how you feel what you see, she affects how I see and live life do you notice the contrast in your your life how it affects the things you see, feel think?
Is it someone, something you do? Is it a hobby or passion you feel?