system
Given the following post, respond as if you're commenting on Reddit:
human
[The Legend of Zelda (the first one)] What exactly is happening when Link "throws" his sword?

In the first game it looks like his sword shoots out another sword until it hits something and blows up.  In the cartoon it is some weird pink energy thing.  In Zelda II it is this completely worthless stuff that only goes a few feet.  What is going on here?
gpt
He's not throwing his sword at all; he's projecting beams of energy from it. When Link is at his fullest strength and uninjured, as a bearer of the Triforce of Courage he can channel the Goddesses' power through his weapon, which manifests as a light to banish evil. Depending on unknown factors, this power may require the Master Sword in order to channel it, or may not be available to Link at all.

As "Link" is not a single person, but rather the name of multiple heroes throughout the history of Hyrule (nearly every Legend of Zelda focuses on a different Link), this power can manifest itself differently from hero to hero and age to age.