Mary and the family wanted to protect Jesus. He needed a rest, time to himself, the crowds would wear him out. So they set out to bring him home.
But he gets energy from the crowd, from people listening to the word of God.
Those who listen and do the will of God are close to him;
just as close as any member of his own family.
We too are called to this closeness with Christ. We can become family to him.
Source: Jesuits in Britain