Helen Keller's formative years were marked by both deafness and blindness, which struck her at a young age, leaving her isolated and frustrated. The turning point came when she met Anne Sullivan, her teacher, who introduced her to language through the manual alphabet. This breakthrough allowed Keller to express herself and connect with the world. Her experiences of overcoming adversity fueled her passion for advocacy, and she became a prominent voice for people with disabilities, fighting for their rights and highlighting the importance of accessibility and education.