In Smallville S01E06, when Lex finally decides to learn his future, Cassandra sees him being the President of the United States, he's wearing a white costume. Then he walks out of the building, appears in the sunflower field with all the sunflowers dying as soon as he touches the first one. After the sunflowers are gone, a field of skeletons emerges from beneath and a blood rain starts.
While it's obvious that Lex Luthor is the main antagonist for Superman, why so many cryptic elements? Yes, he kills lots of people, hence the blood, but what's the meaning of being the President, sunflowers and even a rain of blood?