I think it’s obvious that the black cube has deep symbolic meaning in our movies and religions:
The Cube ship from the Star Trek Federation’s most fearsome enemy – the Borg:
The Allspark Cube from the Transformers Movies:
The cube from the Hellraiser movies:
Even the black monolith in 2001: A Space Odyessey was cube-like from some angles
The Kaaba in Mecca, the sacred Black Cube of Islam:
The Tefillin worn by a religious Jew while praying:
The Christian Cross as an unfolded Cube:
Some associate the black cube with the planet Saturn, which denotes time, father time, Chronos, change, a changing of the guard, an overthrow of the existing order, a new pantheon of gods…
From the Sepher Yetzirah, we learn of the Cube of Space (the twelve edges of the Cube are formed from the twelve double letters of the Hebrew alphabet which are attributed to the signs of the zodiac) within which the jewel-like Tree of Life forms. This astrological concept is the mystical Jewish representation of the universe. (Jay Wiedner has more to say on this.)
The cube in the Kaballah’s Tree of Life:
I believe the cube of space is meant to be viewed as the “tree of life” depicts it above: not on edge but “on corner” with a corner in front blocking one’s view of a corner directly behind it. This view is a symbol of the sun behind the sun, or the dark or hidden sun. There will be an actual “heavenly enactment” of these positions (as shown above) in a few years when the sun, moon, galactic center, and planets are in the proper positions to represent all the major stages of an ancient Jewish wedding ceremony in late December 2019, and then as if that were not impressive enough – the fastest moving objects in the sky alter the arrangement and represent the Tree of Life pattern in January 2020. Neither arrangement has happened for at least 5,000 years.
I believe the crucial part refers to the alignment of the sun and the (currently dark, but soon-to-appear-illuminated) black hole at the center of the galaxy. All spiral galaxies have a central black hole which periodically has an active phase. It began about 23,000 years ago, but it takes 23,000 years for the light, radiation, and gravity waves to reach us this far out from the center. When this “galactic superwave” arrives, it will literally rock our world. I believe ancient religions described the last such event as the presence of God. It will occur during the alignments described above, which will be more meaningful once the galaxy’s central black hole appears to become active. I believe it will be the end of the world as we know it – when it happens in December 2019. (There is much more detail in End Times and 2019.)
These are my conclusions – but I welcome other thoughts and comments on the symbolism of the black cube – it is far too widespread to be ignored as coincidence.