Seeing that he was studying in an academy or being there for any job in the dream indicates that there are people who want to benefit from his knowledge. Your environment sees you as someone full of information. Seeing the academy in the dream indicates that there is someone to consult with you and that you will help them.
In the dream, seeing that he received a diploma from an academy signifies that he has made some attempts to obtain new information. Seeing that he received a diploma from the academy also indicates that he will start a new education life.