Whatever you are physically...male or female, strong or weak, ill or healthy--all those things matter less than what your heart contains. If you have the soul of a warrior, you are a warrior. All those other things, they are the glass that contains the lamp, but you are the light inside.

This quote is saying that how you are physically (ex. male, female, strong, weak, ill, healthy) cannot determine who you are. What truly makes you who you are is what is inside your heart. Even if you are not physically strong, if you have the soul of a warrior, you are still a warrior. The physical attributes are like the glass of a lamp; they contain the light, but the light itself is inside you.