When we use our imagination properly it is our greatest friend; it goes belyond reason and is the only light that takes us everywhere.
Some imaginations help to break the bondage of the rest. The whole universe is imagination, but one set of imaginations will cure another set. Those that tell us that there is sin and sorrow and death in the world are terrible. But the other set - thou art holy, there is God, there is no pain - these are good, and help to break the bondage of the others. The highest imagination that can break all the links of the chain is that of the Personal God.
Meditation, you know, comes by a process imagination. You go through all these processes purification of the elements - making the one melt the other, that into the next higher, that into mind, that into spirit, and then you are spirit.