Simply seeing ants in your dream can mean that you will have some minor annoyances in real life soon. They will not hold you back for a significant time but will cause an increase in the stress levels.
If you are disgusted by ants in the dream in means that in real life you will lose the sympathy for some person largely due to their nefarious actions towards you. This will not happen suddenly but rather it will happen over a longer period of time.
Seeing black ants in the dream can mean that you will have to deal with issues from your past soon. Some past conflicts might float to the surface again and you might be forced into trying to solve them once and for all.
Seeing red ants in the dream signifies that you will be made angry soon in real life by the actions of various people in your professional environment. This dream can also mean that you will be forced to realize something of great importance in regards to your professional life and career development.
If you see ants crawling on your skin in the dream it means that you need to be more careful in the way you tend to let people get really close to you from an emotional prospective. Sometimes this dream can signify that you will regret over telling something personal to someone else.
Seeing a large ant colony working signifies that your professional life will be characterized with a strong sense of stability and progress in the upcoming time. This dream can also mean that you will be choosing carefully your positions in the professional life in the next few months. It can be said that you will quite conservative in the regard.