Human beings, with an awareness of some of the more abstract, desire both physical support (things like food, shelter, physical intimacy, etc to support the physical body) and Psychic support: That abstract area related to emotional, mental, spiritual kinds of support.
The desire for affirmation in the mental realm, related to our personal beliefs, narratives, philosophies on how life is best served tend to be extremely strong in humans. We tend to want affirmation of others, showing that we too belong in the context of a group.... that we are valued by others... that others will help support our mental narratives and beliefs. We want to be supported for "who we are" in the context of a group. Even the "rebellious" who advocate that people "be themselves" often seek expression and an audience to feel affirmed that their actions are valuable and worthwhile to other people.
We want what comes from forming groups: Support that comes in the form of assistance when needed, allies, care and protection from potential harm. Humans desire care for The Whole Being.