Near the beginning of this episode, Anakin Skywalker is trying to convince Padmé Amidala to go away with him. She declines because of the important senatorial work she had to do, but Skywalker isn't convinced by this. He explains that nothing is more important to him than their love and that he'll prove it. He says, "When I finished constructing my lightsaber, Obi-Wan said to me, 'Anakin, this weapon is your life.' This weapon is my life," and then he gives it to her.
As he hands it to her, it's facing a direction in which - were it activated - it would eviscerate her:
This foreshadows events in Star Wars - Episode III: The Revenge of the Sith. In the movie, Skywalker has dreams in which Amidala dies in childbirth. Emperor Palpatine tells him that there's a way that he (Skywalker) can save people from death, and Skywalker joins the Sith in order to learn this power. However, his joining the dark side is devastating for Amidala, who loses the will to live.
Skywalker's giving her his lightsaber in this particular way in "Hostage Crisis" foreshadows that. He's only a small step away from something that will fatally injure her.
