Interesting episode about a massive ancient organism in space, that just like a fly-eating plant lures its prey into doom. This organism also telepathically tricks its victims into making them believe their biggest wishes will come true. In case of the Voyager crew: Flying through a wormhole directly to earth.
Only Seven and Naomi are unaffected by the organism's telepathy while the rest of the crew is overwhelmed by their longing for luck and happiness and is put out of action. Both don't share the desire to return back to earth and thus don't fall for those mind games. Both never have set foot on earth and Seven also feels uncomfortable going there for she fears to be treated like an outcast there.
The dynamic between Seven and Naomi continues to grow after Seven had those multiple personality breakdowns in one of the last episodes and bonded with Naomi. She is now determined to teach her all about space and spaceships. The two make a great duo and Naomi is able to pry some emotions out of Seven - sometimes. Maybe Naomi reminds Seven of herself. She was about her age when she was assimilated by the Borg and with her she now has a chance to relive the time as a child.
I also liked this obsessed alien hunter, that tries to kill this organism for nearly 40 years after it devoured his family. As the doctor casually mentions, he is like captain Ahab hunting Moby Dick - with no other purpose and joy in his life anymore but pure cold-blooded revenge. And the last scene of this episode shows him again, back in his vessel flying towards that "whale" again in another attempt to satisfy his revenge once and for all.