That works for me. Brain refers to the physical organ, mind to its undefined and mysterious aspects.I'm therefore using the term "mind" as short-hand for that undefined "somewhere."
Might I ask that you use less quotation marks? The "sentence" above is not a "pleasant" read ("it" is not "easy" to "parse").The question assumes both the "dog" and the "light" exist "independent of" the "ones" in this mysterious "undefined somewhere" we are using to help identify them (again, "mind," or "meta-brain" or "<insert term>" for now, if you agree?).
With that out of the way, notice that my assumptions do not include a conscious entity to identify the reflected light as a dog. The receiver of the light could well be a CCD sensor array in a camera. The fundamental point is that information was transferred, changing the state of the receiver. Whether that receiver is a brain or a camera does not matter.
Assuming that dogs and light exist independently in the universe, when light is reflected off of a dog, I claim that the light carries with it information about the dog. When a suitable receiver of light, such as a camera, interacts with this light, the receiver gains information about the dog. So, I ask you again, where in the light is the dog?