Ask someone what Hera is known for and you will hear one word, usually jealousy. She is the wife of Zeus who spends eternity chasing his girlfriends and their children. That is not wrong, exactly, but it bothers me, because it makes her sound petty, and nothing else about how the Greeks treated her suggests they thought she was petty. Her temples were some of the oldest and grandest in Greece. Whole cities swore by her. A goddess who was only a jealous wife would not have carried that much weight, so I started looking at what she actually does, and I think the better word is not jealousy at all. It is enforcement.
An older goddess than the stories admit
Before the poets arranged the Olympians into a family, Hera was already worshipped in places that had no particular interest in Zeus. The Heraion at Samos is one of the earliest big temples in the Greek world, and the one near Argos was so central that people from across the region walked there in procession. At Argos she was simply the goddess, and the stories that cast her as Zeus's irritable spouse look like later additions made when the local cults were folded into the bigger system.
That matters for how you read her. If she was a major goddess in her own right, then the marriage to Zeus is a merger, not a starting point. Greek myth is full of such merges, and they tend to leave scars. The scar in this case is that the two of them are always arguing about who is in charge.
What she really goes after
Look at the list of her victims. Io is a priestess of Hera herself, and Zeus seduces her; Hera turns her into a cow and sets a hundred-eyed watchman on her. Leto is pregnant by Zeus, and Hera forbids any land to give her a place to give birth, which is why Apollo and Artemis end up born on the tiny floating island of Delos. Semele is tricked into asking to see Zeus in his true form. Callisto, Alcmene, Lamia, the list goes on.
Now notice who she rarely touches: Zeus himself. She argues with him, she schemes against him, she even helps conspire to tie him up at one point. But she almost never delivers the punishment to the person who broke the vow. The punishment lands on the other woman, and above all on the children. Heracles, the most famous victim, is hunted from the cradle, when she sends two snakes into his crib. His own name means glory of Hera, which is such a bitter joke that I can't believe the Greeks missed it. The hero who is forced into his twelve labours by her is, in a sense, her greatest advertisement.
If I am right, then these stories are less about romance than about what happens to a marriage that has no enforcement. Zeus is the king of the gods. He answers to nobody. Hera is the only one who can say that a promise was made and that it matters, and because she cannot touch him, her anger goes sideways. It is a grim picture of what a contract looks like when one side has all the power.
The goddess of marriage, taken seriously
The Greeks called her Teleia, the fulfilled one or the one who completes. She presided over weddings and over the legal bond that made a household a household. Brides prayed to her. A marriage in Athens was not only a private arrangement but a social institution that decided who could inherit, who was legitimate and who belonged to which family. That is a heavy responsibility to give to a goddess, and it explains why she seems so rigid. Her job is to make the system work, and a system that works needs someone willing to insist.
She had a yearly ritual at the spring of Kanathos near Argos, where, according to a later writer, she bathed and became a virgin again. I read that not as a story about purity but as an annual reset. The marriage, with all its quarrels, is renewed. The ledger is cleared. It is a rather kind idea, tucked into the middle of a very severe goddess.
The quarrel in the Iliad
Her best scenes are in the Iliad, where she is a major political actor. She hates Troy with a pure passion, since Paris once gave the golden apple to Aphrodite instead of her, and she wants to see the city burn. Zeus wants the war to go slowly and in a way that honours a promise he made to Thetis. So Hera schemes.
In book fourteen she dresses herself with great care, borrows Aphrodite's magic girdle, and goes to Zeus on Mount Ida while Poseidon quietly helps the Greeks. She tells him a lie about going to visit the edge of the world. He is overwhelmed and tells her no one has ever aroused him so much, including, he lists, a rather long series of other women. Then he falls asleep, and the tide of the war turns. It is a funny, calculated scene, and also very revealing. She does not fight him. She works out exactly what he wants and uses it.
When he wakes up he is furious. He reminds her of the time he hung her from the sky with golden chains and anvils tied to her feet, and none of the other gods dared to untie her. He threatens to do it again. She says all the right things, swears an oath and goes back to Olympus. I find the power balance here unnervingly honest. The Greeks did not pretend the marriage was equal. They simply showed that she was more clever than he was.
The cuckoo
One more story, which I only found recently, comes from a local legend near Hermione. Zeus wanted to court Hera, who was not interested, so he created a storm and then turned himself into a small, wet, shivering cuckoo. Hera felt sorry for the bird and held it against her chest to warm it up. Zeus changed back and took advantage of the moment. Afterwards, she agreed to marry him out of embarrassment.
It is a weirdly revealing myth. The king of the gods can only get close to her by looking helpless, and he gets his way by trickery. If you take the first scene of the marriage as the template for the whole relationship, then everything that comes afterward, her suspicion, her watchfulness, her anger, begins to look like a response to the way it started.
What I think she was for
I don't think the Greeks admired Hera in the same way they admired Athena or Apollo. I think they relied on her. She stood for the idea that bonds should hold: between husband and wife, between city and ruler, between oath and action. And the stories about her fury are a warning about what happens when a bond is broken and no one with authority steps in to repair it.
That is the thing I would want someone to take away. The next time you hear Hera described as a jealous wife, ask yourself who in the story broke the promise first. Nine times in ten, it is Zeus. And she is the only one on Olympus who remembers.