To dream of a rattlesnake represents people or situations that warn you about unpleasant consequences if you don't co-operate. Obvious warning signs or open hostility. Feelings about there being potential for a serious problem in your waking life.
Alternatively, a rattlesnake could also represent your attempt to threaten someone else with an undesirable course of action if they continue doing something you don't like. Warning someone else they they are going to pay dearly if they disrespect you or choose to avoid listening to you.
To dream of being bitten by a rattlesnake may reflect feelings about having ignored obvious warning signs. Feelings of regret for not having taken a warning or threat more seriously.
To dream of only a rattlesnake tail with no body may reflect a fake threats or fake dire warnings. Threats or warnings with no substance. Confidently warning someone of a failure that isn't possible for you to carry out.
Example: A woman dreamed of a rattlesnake. In waking life she was receiving threats from lawyers about losing custody of her child.
Example 2: A woman dreamed of someone pointing to a rattlesnake. In waking life she was beginning to see warning signs that her boyfriend was thinking of cheating on her and causing problems with their relationship. She had caught him looking at other girls.
Example 3: A man dreamed of a rattlesnake. In waking life he didn't trust his boss and felt that continuing to work for him may have serious consequences.
*Please See Snakes