Vampires have the power of flight and as such they signify the same thing as flying in a dream. Since your physical body cannot fly it symbolizes being able to project your mind onto others. This is quite useful if you work in marketing or sales but it also has a spiritual dimension. You can use your strong mind to influence how others think and to also influence their health. It works along the lines of thinking yourself healthy, but in this case you can think somebody else healthy. This ability is best known from the bible when Jesus heals the centurion’s servant without ever seeing him. You are probably wondering why the vampire though. The reason is that while you can heal someone by thinking well of them, you can also negatively affect someone by harboring negative thoughts about them. For those of us without this ability, it is not a problem as our thoughts do not affect others that way. In your case, however, dreaming of a vampire is reminding you that you have a special ability, and right now you are using it in a way that is sucking the life force out of somebody. You should know who it is already, and if you do not, then check how you think in general. Do you see everyone as a jerk and wish bad luck on them? The dream is reminding you of your power and that it is your responsibility to control it, or accept the karmic consequence. Oh yes, and please don’t think badly of me for telling you what it means!
An unclean vessel (anything that can hold water, e.g. a cup, glass, bathtub, barrel, etc.) means you do not respect your femininity. Often the cause is being conditioned at a young age to view sex as dirty. This comes mainly from a religious background where a woman who had a child was considered unclean until purified by the church. This can lead to viewing any part of your body that distinguishes gender as unclean or dirty.