

Colloquially, you can think of values or virtues. So, community might be something you value, which gives you certain needs, such as a sense of belonging or acceptance. Similarly, if being alive is important to you, then food, water, and shelter will be among your growing list of needs.
On the other hand, you might have a desire to chew your nails, which would briefly relieve your anxiety but cause other long-term problems. You weigh these facts and decide not to fulfill your desire to chew your nails.
You cannot reasonably opt-out of having friends, however, if community is important to you or simply decide not to eat if living is still a priority. Those are needs.


Reproduction is a paradigmatic example of a meaningless urge or desire. You can certainly choose to reproduce, if you must.