Marduk, Martu, Meru

Marduk2
First, Marduk, also Merodach, Amar-Utu or Meri-Dug, shares the etymological root "Meru," the sacred mountain of the Rig-Veda. This root may also extend to the Old Babylonian thunder god Amurru or Martu, known as the "lord of the mountain." In this way, Marduk is cognate with the Rig-Veda description of Indra living at the top of Mount Meru.

Also, in this Babylonian frieze we see Marduk carrying thunderbolts or "vajras" much like Indra, Zeus and Thor. Like Indra, who uses his vajra to slay the dragon Vritra, Marduk also pursues the fire-breathing dragon Ansu with his vajras. The vajra and dragon provide further evidence that Marduk descends from Indra in the Rig-Veda.

For Indra, the vajra thunderbolt symbolized his consumption of the entheogenic Soma, given to him by Tvashtri before battling the dragon to make him brave. Marduk's thunderbolts probably represent the very same thing. Marduk was sometimes described as "foraging for truffles in the mountains," suggestive of the Amanita Muscaria mushrooms believed to have been used to make Soma (Wasson).