Life and death are one complete cycle. Spring comes and brings the flowers, while fall comes and takes them away. Fire destroys the forest, and rain brings the forest back to life. Every thing gets balanced. So Symbols need to be understood.
Symbols are as real as the sun.
You just have to know how to balance them. Heaven is a medieval English word, it means Balance, which brings Harmony, or synchronicity. If you think about the merge of night and day, one just blends into the other. One follows the other so quickly that you hardly notice the difference. When you fall asleep you hardly can pinpoint the time when it occurs.