What are connections? Connections are essentially how many people you can know based on your status and position, and how many people are willing to befriend you.
In simpler terms, connections are a bridge of communication created through mutual exchange of benefits.
For example, if you need someone to do something for you, and you don't know them at all, it will be very difficult to get it done.
But if you know the person, or get introduced through a friend, you have a communication link, and the task can be accomplished.