Seville is a city that turns the street into a stage.

01 The city as a stage

Most cities hand you monuments. Seville hands you a calendar. To understand it you don't tick off buildings; you catch it in the act of being itself — and that act is almost always collective, emotional and out in the open. The same people who would be reserved one-to-one will weep in a crowd as a float passes, or dance with strangers until dawn. The street is where the city keeps its soul, and the street is a stage.

Two great rituals organise the whole year, both in spring, and between them they explain Seville better than any museum: Holy Week and the April Fair, grief and joy back to back. Watch either one and you stop seeing a pretty Andalusian capital and start seeing a city that has made shared emotion its art form.

02 The passion that takes to the street

Semana Santa, Holy Week, is Seville at its most intense. For seven days, dozens of brotherhoods (the hermandades) carry their pasos — enormous, candlelit floats bearing centuries-old images of Christ and the Virgin — out of their churches and through the streets to the cathedral and back. Behind them walk the nazarenos, penitents in robes and tall pointed hoods, thousands of them, in silence. It is solemn, sensory and overwhelming, and it belongs to everyone: believers and non-believers, locals and visitors, all pressed into the same dark streets.

What makes it Sevillian rather than merely religious is the feeling. Beneath each float, hidden under velvet, the costaleros — bearers working bent double in a space barely sixty centimetres high — move more than a tonne of wood and silver step by step, for hours, an effort passed from father to son. The crowd doesn't applaud a show; it accompanies a grief it owns. You can be an atheist from the other side of the world and still find your throat tighten. That is the point: the emotion is designed to be shared.

03 And then, the joy

Two weeks after the grief comes its opposite, by design. The Feria de Abril turns a whole fairground on the far bank of the river into a temporary city of casetas — striped marquees strung with paper lanterns — where Seville eats, drinks fino sherry and rebujito, and dances sevillanas from afternoon to sunrise. Women wear the flamenca dress, horses and carriages parade, and the same city that walked in silence a fortnight earlier now refuses to sit still.

The two festivals are not opposites so much as two halves of one temperament. Seville does sorrow and celebration with the same totality, the same willingness to feel in public and feel together. To catch the city in spring is to watch it swing from one extreme to the other without ever once doing it alone.

04 Why the emotion needs an audience

The clue to all of it is the saeta. At a procession, without warning, a voice will rise from a balcony or the crowd — an unaccompanied flamenco lament flung at the passing image — and everything stops: the float, the band, the thousands of people, all holding still for one person's raw devotion. Nobody scheduled it. It is emotion erupting in public and being received in public, which is the essence of how Seville feels anything.

This is why the city can seem theatrical, and why that word isn't an insult here. A feeling, in Seville, is not fully real until it is shared — sung, carried, danced, witnessed. The street isn't a backdrop to the city's emotional life; it is the stage on which that life is allowed to happen. Take the audience away and the passion has nowhere to go.

05 What stays

You can visit Seville at any time and love the Alcázar, the Giralda and the tiled patios. But if you want to understand it, come when it performs itself, or look for the smaller daily versions — the bar where strangers end up singing, the square that fills at dusk — that run on the same code all year round. The grand rituals only concentrate what the city does every day: turn private feeling into shared life.

That is Seville's real difference. Not a building you photograph, but a way of feeling out loud, in company, in the street. Leave and what stays with you isn't a monument; it's the memory of a whole city moved at the same time — and the slightly unsettling discovery that, for a moment, you were moved with it.