Homesickness is not always a vague, nostalgic, almost beautiful emotion, although that is somehow the way we always seem to picture it in our mind. It can be a terribly keen blade, not just a sickness in metaphor but in fact as well. It can change the way one looks at the world; the faces one sees in the street look not just indifferent but ugly... perhaps even malignant. Homesickness is a real sickness--the ache of the uprooted plant.