Like in real life, the traffic light in oneiric thoughts is a sign of warning; especially if it is red or orange. In this case, it warns of the arrival of imminent danger and the need to stay alert. If it is green, it announces that now is the favorable moment to start new projects and establish more profound relationships. But, the traffic light can also represent the moral and social code, with all of the resistance, inhibitions, and obstacles that hinder the evolution of people and their understanding. The dreamer should decide, in this case, if he should disregard this sign or not, and if it is prudent to run the red light.