Snake Dreams

There's a saying that dreaming of snakes brings wealth, but the snakes in my dreams were usually black. I often hear that black snakes are a bad omen, but I think maybe they were giving me 'advice.' Once, when my posture was bad and my legs hurt, a black snake bit my leg in my dream, and I woke up startled. One day, I had a dream where a disliked person from work was attacked by a black snake. In the dream, I vaguely thought that person deserved it because they had stepped on a turtle. After that, I briefly saw a white snake. I'm not sure what it meant, but later I moved and parted ways with that unpleasant coworker. Was it a dream of separation? I haven't had a clear snake dream since then.