In J.R.R. Tolkien’s, The Lord of the Rings, there’s no way Frodo fulfills his quest without the constant companionship of Samwise the Brave.
If you go back and watch the trilogy, you’ll discover that Sam lugs nearly all of the equipment on their perilous quest. This foreshadows the final scene in which Sam—on his back—hauls Frodo up Mount Doom.
Sam’s companionship helps Frodo fulfill his quest and Samwise the Brave completes his own in the process.
Companionship, however, isn’t just for hobbits. We humans should also gather companions for the journey. But we must choose our fellow-travellers carefully because those closest to us will define us. At the end of the day, we’re made by the relationships we make.