To see or use a mug in your dream represents love nurturance and the womb.
The mug also signifies rejuvenation and healing.
Alternatively, it indicates a transcendence into a realm of higher consciousness.
To see or use an insulated mug in your dream suggests that you are trying to keep a certain feeling or hope alive. You want to keep an idea “hot” or a project on track.
Negatively, the dream means that you may be trying to hold onto something too long and it may be time to let go.