My key says "Courage."
My sister's friend was diagnosed with breast cancer and is going through her radiation treatments right now. She sent my sister some pictures saying how the damaging effects are now becoming apparent. When my sister was showing me the pictures and telling me about it, I knew that I needed to send her my key. I knew exactly what she was going through, and the doubts and concerns she was having because it hasn't been that long ago that I was going through the same thing myself. I sent her my key to help her have the courage to live each day and not worry about the what-ifs since that's the hardest part of healing!