What is the human drive? The thing that keeps us going, urges humans to continue on, the need to succeed. Well? :m:
Humans are quite keen on staying alive. They like to be comfortable while they do it, and perhaps enjoy the process. They are also rather enthusiastic about sex, on the whole.
Biology, from the level of viruses up. Viruses, bacteria, cells, all if it, is alive because over time it has developed to follow a pattern of staying alive and reproducing. It's hardwired into us.