Gandhi saw how people have to re-think their own individuality before engaging in political activity. Otherwise they're just playing the game that the adversary has set out.
The best way to neutralise fear is by laughing. You can see the dynamics of this in action when people watch a horror movie. You'll notice that immediately after a good fright, following the sceams of terror - which is the point of maximum experience of fear - people will always laugh immediately afterward, as this is the natural way to release the fear. By laughing at something you also take away the perception that it has any power over you.