President Mary McAleese and Taoiseach Bertie Ahern were among those attending this morning's annual State commemoration of the 1916 Rising at Arbour Hill in Dublin.
During mass, the Auxiliary Bishop of Armagh said that 91 years after the Rising the wave of immigration into this country presents challenges for the Catholic Church and the State.
Bishop Gerard Clifford said the affluence of many in Ireland today is full of anomalies.
Dr Clifford said pertinent questions are asked about how modern society measures up to the ideals of those who fought for Irish freedom.
Bishop Clifford said the 400,000 new migrants to Ireland who now make up 10% of the population are entitled to more than a mere welcome.
He said they have a right to a quality of life comparable to the rest of the community, the right to work and protection in the workplace. They are also entitled the right to a family life, he added.
The bishop said Ireland is making its own distinct efforts to address the new wave of immigration.
However, he said, there are still bridges to cross.