Simply seeing a palace in your dream signifies that you have very well defined goals in your professional life in terms of where you want to go with your career and the achievements in it. This is especially true if you are still quite young and your formal education is still not complete.
Seeing a palace in your dream but somewhat unclearly such as through haze or from a great distance away can mean that someone will try to scam or swindle you soon. A dream like this one also signifies that you need to avoid risky business in your professional life for the next few months.
If in your dream you see a palace and then you are invited to enter inside it means that you soon will be accepted into a group of a select few individuals. You might feel quite honored by the whole ordeal.
Having a dream in which you will admire the splendor and luxury of a palace signifies that earning more money will be your main motivation for progressing in your career in the following months. Alternatively, this dream can signify that you will get inspired by someone to progress into your career.
To live in a large, luxurious palace it signifies that you would need to adjust your expectations and lifestyle to be in line with your current earnings. You might also want to keep your spending habits in check as saving money in contrast to spending them might be more useful in the upcoming period.
If in your dream you saw a burned, demolished or in other way a destroyed palace it signifies that some of your core beliefs related to your chosen professional field will soon be proven to be wrong.