That's right, there are only 4 real parts to Mind Over Matter and they are all within your grasp.
The first part is your Personal Will. Without this will you cannot intend situations and items into your life.
The second part is your Imagination. The same imagination you've used for daydreaming can be used to create your life.
Thirdly, there are your thoughts. After you've created an idea with your imagination, your thoughts define the details of that idea, the how, why and in what manner something will show up within your life.
Last but not least are your emotions. The role of emotions is a bit complex so let's leave that explanation until after the other three are understood.