Dublin's Dawson Street was brought to a standstill as hundreds of people gathered at the Mansion House to bid farewell to a young man who died after being struck by a Luas tram.
President Michael D Higgins and Labour leader Brendan Howlin were among the mourners who appeared noticeably emotional as the coffin of Cormac O Braonain (19) was brought into the Round Room of the historic building.
Members of Scouting Ireland formed a guard of honour for the former scout leader, along with students from his old secondary school, Colaiste Eoin.
The Mansion House was full to capacity and many others stood wait outside in the cold for the duration of the humanist ceremony, who was also the chairperson of Labour Youth.
His sister Muireann described him as a "patchwork quilt of a person knitted together by a thousand passions".
"Cormac lived as he played music, as if there was an entire orchestra in his head," she said.
"Half of you said he was an old man by the age of three; the other half of you said he acted like a three-year-old at the age of 19.
"Cormac felt he could learn something from everybody. He was unapologetically himself."
Cormac's father Lu read from James Joyce's The Dead, while his mother Eva read the WB Yeats poem He Wishes For the Cloths Of Heaven.
UCD Labour Youth paid tribute to Cormac in a statement in the university's newspaper.
"Cormac didn't need anyone to imagine a future for him," the statement said.
"He spent every day of his life completely devoted to building his own future and protecting the future of others.
"He lived a brave, full life and achieved so much in his short period of time."