Within the field of fiction there is much talk about dimensional portals. We are told that we can travel through space, time, alternative dimensions or in all three. However, different sightings of large circular shapes that appear to swallow the clouds are evident. This type of experience has been captured in different parts of the world and is evidenced by photographs and videos.
It seems to be related to the UFO phenomenon. It is believed that they use these doors for their travel purposes to other places or dimensions. It has been observed that after the UFO accelerates over the mass of rotating clouds, everything vanishes as if it were never there.