The mind is responsible for all the reality we see. The law of attraction says "we attract our reality base on what we think", therefore "I think, so I am".
The mind is the first really that we see before we bring forth our mind-reality into the real world. The mind concrete through visualization, as quoted by Aristotle " a soul cannot think without an image", when we begin to think ,we construct mental image through a process called "visualization", and whatever the mind can conceive and believe, it can achieve - Napoleon Hill.
Our thoughts are vibration that attract our reality, sometimes even before we bring it out, example is in the case when we think of a friend in our mind, suddenly we see that friend coming. Our mind is the fire we use to cook the food we want to serve to the real world,but remember,some food taste good while some doesn't, it is the power of choice that we have we ought to use to determine the taste of the food.