In my humble opinion, the Universe is composed of Light, which makes all of us Light beings.
As Light is all knowing, all powerful, and all present, It lacks nothing. This also means It doesn't need to be taught anything; the paradigm of the student and teachers is, therefore, foreign to the Light.
Light beings simply express and share all the love they are being.
Related articles: Light is All and in All; Playing It Stupid; We are All Children of Light; A Demonstration of Omnipresence