On the eve of Christmas Eve, I stroll up the street where I grew up to catch the bus into town for the first time in more than a decade.

The 78 bus is gone now, replaced by the number 40 that crawls through working class suburbs west of the city, over O’Connell Bridge itself and finishes its journey in the deep north of Dublin.

Older women with shopping trolleys wait in line by the electronic sign showing waiting times for the different buses. That would have been handy when I was a teenager. “Remember, you can get any number but the 18 bus”, Mum says. “you don’t want to be ending up in Sandymount.”

I hop on board and my favourite seat: upstairs at the very front. The main shopping drag is busy this morning. Jackie’s florist has lots of handmade evergreen wreaths for front doors and graveyard headstones. There is no hearse in front of Massey’s this morning, although when leaving the house I heard the slow tolling of the funeral bell up at St. Matthew’s Church, which this very day is celebrating the 40th anniversary of the opening of its doors. Impossible to imagine burying a loved one in the week that’s in it.

Down through the lower end of Ballyfermot, I have a perfect view across the river to the Phoenix Park and the Pope’s Cross. There is a new cafe at the GAA club down at Sarsfield Ranch, but next door the draughty scout hall I spent half my youth in, first as a sea scout and then as a venture scout, has been torn down. Wonder where they meet now.

As we go under the railway bridge, the border between Ballyfermot and Inchicore, I look with fresh eyes over the big stone wall into the railywaymen’s houses with their symmetrical windows and colourful front doors. They look huge and fancy from the outside, and I can’t imagine how they can be only two-bedroom houses.

Inchicore village is much changed since my youth: they even let women into the front bar of the Black Lion these days. There is a nice looking Italian enoteca next door, and a handful of international groceries selling Turkish, Polish, African and Indian food. Over the Camac River, St. Patrick’s Athletic grounds are now surrounded by newer apartment blocks as well as the old red-bricked terraced houses. St. Michael’s Church is not far from the street where my father grew up, but the bus heads towards Kilmainham and St. James’s Gate rather than down the South Circular Road, so this is as close as I get.

I remember the name of a girl I went to school with, as I pass her mum’s house in Old Kilmainham. The entrance to St. James’s Hospital is more modern now, with the Luas trams driving right into the hospital complex. Past Guinness’s iconic St. James’s Gate and the green dome of St. Patrick’s Tower, the former windmill of the long-closed Roe whisky distillery, past St. Catherine’s church, the site of the execution of Irish patriot Robert Emmet. I know these places not from history at school but from the stories my Dad told me every time we drove or took the bus down this route. His knowledge of the history of Dublin was encyclopaedic.

Thomas Street and Meath Street, the heart of the Liberties, are as run down today as they were in my youth. Street sellers call out in their unforgettable Liberties accent: “Get the last of the Christmas wrapping paper, there now five sheets for two euro!” I remember when it used to be five sheets for ten pence. As my father would have said, that was neither today nor yesterday.

The heart of the Liberties has not changed for centuries, the imposing church of St. Audoen’s only in the ha’penny place beside the even grander structures of Christchurch Cathedral and St. Patrick’s Cathedral around the corner. So strange that, with the history of this city, we ended up with two Protestant cathedrals and no Catholic one to this day.

Dame Street is heaving with traffic and people. Trinity College is surprisingly bare of Christmas lights but the big old Bank of Ireland is looking great with a huge lit-up tree and plenty of Christmas garlands.

Round by Westmoreland Street the crowds continue. The Spire rises up into the cold grey sky like a giant silver needle, dwarfing everything on O’Connell Street. Hard to imagine Dublin now without this marker of the new millennium.

I hop off the bus at the GPO. School kids from Belvedere College are holding a sleep out in aid of the homeless. Clery’s is wrapped up with a huge ribbon of white lights. There is a big Chirstmas crib at the bottom of the tree in the middle of the street: no baby Jesus in there yet though. not till Christmas morning. The last few years saw a fancy artificial tree on O’Connell Street but we are back to a more traditional spruce this year.

Eason’s is jam packed. Dads queue up with Christmas annuals for the kids. The three-for-two book deals are popular. I don’t manage to escape the shop without a book or two, even though it’s the second bookshop I’ve visited in twenty-four hours. Dublin always reignites my passion for reading somehow: must be all that literary history in the water. I entertain myself for a few minutes looking at the Irish tourist tat on sale near the front doors, and choose a few classic “you know you’re Irish when…” greetings cards to support local small business.

Back outside, it’s not that chilly. The crowds are thickening as the lunchtime crowds start to hit the streets. A day of shopping and family awaits, but for now I stand in the heart of Dublin and try to take in the moment: I made it home for Christmas.