THIRD!!! NEVER EVER WRITE AN ESSAY IN FIRST OR SECOND PERSON!!!!
~Please dear god don't ever write an essay in first or second person. <3 Ezry.
The sentence is saying nonviolence is a powerful weapon that can destroy unrighteousness without even wounding it and can heal everything around it.
B: Service is being an active helper in the community and taking action that can be of benefit.