"Candy" is a very common synonym for cocain, for example in Jamaica. This also explains the line: "Candy, pure as driven snow" AND the contradicting in the lyrics of someone being alone while being with "Candy" at the next same time, because the drug addict is getting more and more isolated, living only for "her", the drug "Candy". Last but not least you'll find this "love" song on the EP "I'm On Drugs"... - Any further questions??