Okay, so the hyacinth thing is actually pretty layered. Most people know the basics—Apollo accidentally kills his boyfriend Hyacinthus with a discus, a flower springs up from his blood, it's a tragedy. But it's not just a simple 'oops I killed my lover' story.
For starters, the hyacinth flower in the myth is often described as dark, almost like it's stained with blood, with markings that resemble the Greek letters 'AI'—a cry of grief. That's a direct symbol of Apollo's eternal mourning, literally etched into the flower itself. It's a permanent memorial.
Also, there's a whole undercurrent about the dangers of competitive love, since some versions say the god of the West Wind, Zephyrus, was jealous and blew the discus off course. So the flower symbolizes how divine passions can be literally deadly for mortals, a warning about getting too close to gods.
What gets me is how the story flips the usual 'death and rebirth' plant myth. Unlike Adonis or Persephone, Hyacinthus doesn't really come back. He's just... gone, transformed into a fleeting flower that withers. It's a more melancholic take on immortality, more about memory than resurrection. Always found that sadder.