The speaker wants the outside world to understand that even he/she is able to think, feel and form ideas, which long to be shared with others. But as he/she is deaf and dumb he cannot convey it to others. If he attempts to do so it appears strange to others. If he attempts to do so it appears strange to others.
So he wants to understand that like every other human being, he is also able to think and feel, and expects us to not ignore him. He wants us to include him and share his thoughts and feelings.
