What is the attitude towards death among the people in its society? What was Lenina mentioned about death that seems to oppose a basic BNW philosophy ?

The two concepts of individual death presented in these chapters are starkly different. In John's idea of death, each individual represents a whole unto itself and deserves to be mourned upon death. On the other hand, the bokanovskified children learn to view death in a societal context, where the individual has no meaning. Because death does not harm society, the people do not need to fear it.