The most difficult thing in time travel is not to get into the past or the future. It is important to go back exactly at the same time from where the journey started. Otherwise, you can simply fall out of your causal chain irrevocably, or integrate into a causal chain that is different from the original one.
To avoid such setbacks, each traveler must remain connected to the moment of leaving in his present. Have some kind of grounding, along which, as along the path of least resistance, you can "flow" back at any time.
On the frescoes and papyri of Ancient Egypt, you can find a strange element of the clothing of the gods or pharaohs. The likeness of a tail, present at the back of a character in the process of some kind of change.
The tail on the clothes of the walking god.
It is always a walking figure. That is, located simultaneously in two places or states. In some temple murals, the “tail” is painted in three recurring colors. Meaning "pillar of Jed" - Osiris, lord of the kingdom of eternal perfection. What technologies allowed the Egyptians to be in several places at the same time is unclear. But sculptural images of figures with grounding stripes on the back, created from the 4th to the 2nd millennium BC, are found in large numbers in the steppes of southern Russia and Ukraine.
Called "Scythian women", due to the absolute misunderstanding of the time of creation and purpose, these ancient statues are chaotically scattered over a vast, always empty territory.
Scythian statue with a tail on its back.
With good preservation, they look like in the photo. Behind with a distinct "tail" or "braid", starting from the neck, then from the head hoop.
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A similar statuette (only made more carefully) was found during excavations of a Sumerian city. She is believed to represent the goddess Inanna.
Sumerian statue.
Grounding, which resembles a cable connecting an astronaut going out into space with his spacecraft, is also available.
But the most detailed drawing is a "temporary fixator" on the back of the famous Kernosovsky idol (about III millennium BC), found in the mounds of the Black Sea region in the 70s of the twentieth century.
Kernosovsky idol IV-III thousand years BC
None of the scientists even tries to explain the presence of a tail resembling an embryonic rudiment on all the listed artifacts.
The rays that cut the space behind the back of Kernosov's grandfather should symbolize exactly space, because scientists consider the rays superimposed on each other in the form of oblique cross bars to symbolize the sky and time.
Travelers have always found an exit point away from human settlements to avoid panic among the local population. But it is obvious that when nomadic tribes witnessed the appearance of human beings out of thin air, they left monuments in those places. Sculptures devoid of facial features, with a strip stretching along the back and an incomprehensible object in their folded hands in front of the stomach.
In accordance with the Poincaré hypothesis recently proved by Grigory Perelman, all dimensions above three-dimensional tend to curl up into a ball. This means that time (4th dimension) is cyclical and spherical. Which means the mathematically proven possibility of moving into the past, moving into the distant future. Such a movement makes one think about the management of the development of human civilization by representatives of future generations.