It's not that you become more and more "light." It's that you become increasingly aware that that is what you have been the whole time. That is a significant difference. Otherwise it will seem as though you must change yourself from a dense, physical "mortal" into a spiritual light presence, an "immortal," as though you were changing a flat world into a round world. But, you are not changing a flat world into a round world. You are not changing a physical being into a spiritual being. You are just finally having a clearer assessment of what has been going on the whole time. Increasingly, the realization is that what was has been going on the whole time is that we are spiritual beings in a spiritual universe.
This does not mean you will not be specifically identified. This does not mean you will be without a body. You will always have a body. But, YOU are not the body! You are Conscious Presence, which looks like something.
You will never be without a body, is my understanding. And, therefore, the fact that you "have" one is not proof that you are in a lesser dimension. You will always be embodied. You will always look like something. Consciousness is manifest and is aware of its manifestation. But, who you are is Consciousness. It is NOT that the manifestation is conscious. It's the other way around. CONSCIOUSNESS is manifest. The ordering is crucial.