You're not human if you don't feel fear. But I've learnt to treat fear as an emotion that sharpens me. It's there to give me that edge for what I have to do.
Meditation is all about the pursuit of nothingness. It's like the ultimate rest. It's better than the best sleep you've ever had. It's a quieting of the mind. It sharpens everything especially your appreciation of your surroundings. It keeps life fresh.
The anger in the Brigade against those who fought the Republic in the rear was sharpened by reports of weapons even tanks being kept from the front and hidden for treacherous purposes.
The flame of anger bright and brief sharpens the barb of love.