Freedom is the open window through which pours the sunlight of the human spirit and human dignity.
What they smell isn't the emotion of fear. What dogs can smell is the changes in a person's skin that suggest fear to the dog anxiety the way your skin sweats the amount of uric acid that suddenly pours out of your pores.
You travel with the hope that something unexpected will happen. It has to do with enjoying being lost and figuring it out and the satisfaction. I always get a little disappointed when I know too well where I'm going or when I've lived in a place so long that there's no chance I could possibly get lost.