Quote from A Course in Miracles Text Chapter 30 - THE NEW BEGINNING.

T-30.VII.1. Would God have left the meaning of the world to your interpretation? 2 If He had, it has no meaning. 3 For it cannot be that meaning changes constantly, and yet is true. 4 The Holy Spirit looks upon the world as with one purpose, changelessly established. 5 And no situation can affect its aim, but must be in accord with it. 6 For only if its aim could change with every situation could each one be open to interpretation which is different every time you think of it. 7 You add an element into the script you write for every minute in the day, and all that happens now means something else. 8 You take away another element, and every meaning shifts accordingly.