In a vase painting in our text, showing Orestes at Delphi being protected (sort of) by Apollo, we see Orestes clinging to a goat
a tripod
castalia
the omphalos
the pythia
a laurel bay tree

In the respective passage the Omphalos was showing Orestes at Delphi protected by Apollo.

Omphalos is also know as the stone given to Cronus in the ancient world, they will with the help of this stone you may directly connect with the god . The sculpture of the stone is so unique that has a craving of a knotted net covering its surfaces.

In the Jewish the stone represent the beginning of the world . They also believe by praying of the stone god will help them always in all the difficulties.

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The omphalos.

Explanation:

The omphalos was a marble stone in the Temple of Apollo in Delphi, Greece, which, according to the Greeks, designated the focal point of the world.

According to the legend, the omphalos fell from the sky as a meteor. He was venerated in the sanctuary of Apollo. Originally it was probably a sacrificial stone of the goddess Gaia and marks the place where the eagles sent by Zeus in the extreme west and in the extreme east met in the middle of the world. According to Pausanias, it was the world axis, the mythical connection between heaven, earth and the underworld.

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