The five bodies are:
When you journal, your mental body has to coordinate with the physical body in order to write. And the emotional body has to coordinate with the mental and physical bodies, in order to express what you are feeling.
As one coordinates the three bodies - emotional, physical, and mental - the spiritual and energy bodies are then able to align more efficiently because you are no longer being overly influenced by one body or the other. You want all bodies in balance with each other, bringing a much more expanded viewpoint of reality and yourself, ultimately experiencing then, the happiness, peace and contentment that comes along with such integration and understanding.
Another major benefit of journaling is that it gives you a simple, easy way to move through emotional upset, especially if you feel stuck.
When you are in emotional distress, often the antidote is using logic. Writing can provide a viewpoint - a broader perspective - that takes you through physical and emotional release, then helps you reach clearer levels of thought, so you can see your life situations more clearly, more realistically.
Journaling will also help you deepen your relationship to whatever issue you are processing. In other words, you begin to understand the issue at subtler levels. And you move from emotional upset and logical understanding to deeper and deeper levels of awareness, and transformation.
When you journal, take the time to enjoy the process. You might be surprised what percolates! When you feel the freedom to play with it, you might even find that you are being introduced to aspects of yourself waiting to be discovered and understood.