LOS ANGELES (RNS) To celebrate the winter solstice, Dean Cameron made an offering to Poseidon, the ancient Greek god of the sea.

In his North Hollywood backyard he placed a roast on the makeshift backyard altar that he calls the “Holy Hibachi.”

Then he returned indoors to eat a potluck feast with fellow Hellenic worshippers celebrating the solstice.

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Cameron only recently discovered American Hellenism, the worship of the 12 ancient Greek gods.

“Because I work in the performing arts, I’m closest with Dionysus because he’s the god of the theater,” said Cameron.

The 58-year-old performing arts technician co-founded the Los Angeles-based polytheistic group Thiasos Phoibos, which uses the Greek letters ΘΙΑΣΟΣ ΦΟΙΒΟΣ and means "followers of Phoebus," another name for Apollo.

Cameron founded the group five years ago after being introduced to the tradition through his friends.

“Up until then, I didn’t know it existed as a worship option,” he said.

Cameron’s group has 15 members who regularly attend events and prayers, but the Facebook group it maintains has almost 160 members.

Local U.S. Hellenic chapters do not report to any national or international body. Worship is based on word-of-mouth traditions and classic ancient literature, said Cameron.

The Hellenes of Dodecatheon, a loose organizational group, reports around 2,000 followers in the U.S., but 100,000 believers use the traditions as a baseline for their religious practices.

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Hellenism is a mainly domestic religion in which prayers and offerings are given in the home. There are designated holidays for different gods, but much of the worship is a guessing game based on scholarly interpretations of ancient text.

“As you can imagine, it’s really hard to find a Hellenic calendar,” Cameron said.

The neopagan movement stems from ancient Greek mythology that centers on religion, philosophy and tradition. Its contemporary version arose in Greece as a way to diminish the power of the Greek Orthodox Church, according to the Archaeological Institute of America.

Because of the close ties between church and government in Greece, today “the practice of Hellenismos is actually illegal,” said Sabina Magliocco, a professor of anthropology and folklore at California State University Northridge.

Hellenic worshippers have struggled to use historic landmarks such as the Temple of Zeus in Athens for their worship because of the Greek government’s opposition, which brings a lot of attention to the Hellenismos, Magliocco said.

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The Greek Orthodox Church has spoken against this form of religious revival and has been aggressive toward Hellenismos, said Edward Butler, associate editor of the journal Walking the Worlds.

“The church is implacably hostile and has attempted to thwart any legal recognition of Hellenic polytheism,” he said.

This hostility was on display when the Rev. Efstathios Kollas, then-president of the Association of Greek Clergymen, told the BBC that Hellenic polytheists “are a handful of miserable resuscitators of a degenerate dead religion who wish to return to the monstrous dark delusions of the past.”

Other scholars say it’s a global movement toward personal fulfillment, disconnected from the Greek Orthodox Church.

“I believe that the polytheist revival, not just in Greece, but all around the world, is a phenomenon of the first importance spiritually and intellectually,” Butler said. He studied polytheism at The New School for Social Research.

“These are individuals rediscovering a relationship with gods that have been proscribed, demonized, ridiculed, reduced to banalities,” he said.

Practice in the U.S. varies from person to person, with many relying on scholars’ interpretations of ancient Greek texts since they don’t speak Greek.

“The question of rules is complicated, as even in antiquity polytheisms were highly diverse and had multiple forms of authority,” Butler explained.

Wendilyn Emrys, a second-year mythological studies student at Pacifica Graduate Institute in Carpinteria, Calif., is a member of Thiasos Phoibos.

Emrys recalled that as a child, she became ill and feverish and one night had an encounter with the goddess Athena.

“She gently poured liquid into my mouth,” Emrys said, noting that it tasted more pure than any water she had ever drunk. “She stroked my head, and then faded out. My fever broke and I lived.”

Since then, the 57-year-old has been devoted to an American form of Hellenism. She is also involved with a Hellenic group dedicated to the goddesses specifically.

This highly personalized practice is typical, even as groups try to open themselves to common rituals.

Cameron, for example, holds prayers in his house, in services that include the offering of oil, grain and meat to the gods. His fellow Hellenists pray as a group in English, but Cameron tries to add Greek when possible because “it reminds us where we came from,” he said. Worshippers give offerings to the gods in the hopes of receiving blessings from them.

“Reciprocity is a very important part of Hellenism,” Cameron explained.

“I would save a Skittle, throw it into the bush and offer it to Dionysus,” he said. “Whatever they give you, you thank them.”

(Juliet Muir is a master’s student in the University of Southern California’s specialized journalism program)