Any adult person who is blind who is a resident of the State may make application to the Commission to receive instruction and training from the instructors. The application shall be in writing and shall be endorsed by at least 2 substantial citizens residing in the community in which the applicant resides. The Commission may pass upon the application and may grant or refuse the same at its discretion. It shall indicate at what time the instruction shall commence, for how long it shall continue, and when it shall determine, and may discontinue the instruction whenever to it it shall seem wise or proper so to do.