Our heightened emotions highlight how important the people around us are.
Our greatest joys are amplified by the presence of friends--weddings need guests and births occur with family in the waiting rooms. Our great adventures are made memorable when they're had with faithful friends at our side. Our successes are enjoyed more when someone enjoys them with us. And pain is certainly no different.
In your greatest griefs you want someone there to hear you. If there were someone to support you or relate with you in your pain, your pain may be a little bit more endurable. Pain needs people.
In our good emotions people act as a multiplier. In our pain, people serve as a foundation.