However, the name is most famously associated with the figure of Cassandra in Greek mythology. In the myths, Cassandra was a Trojan princess gifted with the ability to see the future. Sadly, she was also cursed so that no one would believe her prophecies, even when they came true. This has given the name Cassandra a secondary meaning of "prophetess" or "one whose warnings are ignored".
So, while the literal meaning is about shining brightly, the name is often associated with prophecy and being misunderstood.