Because of the aztecs’ emphasis on warfare, the warrior class was highly valued, and often warriors would volunteer for the most important sacrificial rituals. These were needed because they believed the gods had sacrificed themselves for mankind, that their blood had given man life, and that the sun was nourished with the blood of human hearts. In dreams, such a figure may signify supreme personal sacrifice.... Dream Meanings of Versatile
To dream of an open portal symbolizes a new opportunity.
If you walked through, you will take the opportunity.
If you have a choice of many portals in your dream, this represents a difficult decision you must make in real life.
If you are unable to find the portal to get out of someplace, your dream is telling you that you’re on a “road to nowhere” in your life - you must make changes in the direction your life is heading.... My Dream Interpretation