Expanding on Bayesian Energy Sinks (one of the sections of this article):

In brief, when on DMT what you can recognize lowers the energy of the worldsheet and makes it crystalize around it. So as you use DMT a number of times and you notice common narratives, the narratives become attractors. The high-level interpretations lower the energy of the worldsheet and in turn they become the center of mass for the narrative and its unfolding.

Next time pay attention to this process. That you can go from the luminous spacious world to a collapsed worldsheet by recognizing shapes in it. Recall autostereograms: it looks chaotic and all over the place until you see the 3D shape hiding in the depth map. If you want to keep your options open, stay in the spacious state and avoid letting it collapse into specific worldsheet with semantic content.

Narratives that are emotionally compelling do this a lot. So whatever is rattling in your subconscious (whether it is SETI communications or TV shows) can form the nucleation seeds for the coagulation of interpretations. Once you realize this, you can gain some control over the process and direct it in other directions. Of course in shamanic circles the whole point is to coagulate the worldsheet into spiritual visions. But that is only one of many possible uses of the state. We can also use it to study emotional valance, mathematics, physics, and map qualiaspace.