It's a Brave New World (by Aldous Huxley) reference. It's worth reading if you haven't.
EDIT:
In the book Huxley imagines a new society. One of the hallmarks of the society is there is no pain or suffering. This is accomplished in part by Soma, a fictional drug perhaps best described as a no negative side effect tranquilizer or opiate.
EDIT EDIT:
The society also removes almost all major sources of pain. A person is chemically engineered (was written before the discovery of DNA) to be happy with their job and position in life since conception. There are no parents. There is sex but no romantic love. In avoiding pain almost all the happiness in the society is superficial, coming from sex, drugs and movies. They might be happy, in the most shallow meaning of the word, but there is clearly no joy.
