"A terrible beauty is born."

In Yeats' Easter 1916, he repeats the line "A terrible beauty is born." To me he is referring to his divided loyalty between England and Ireland. He was pronationalism and antinationalism at the time the poem was written, and clearly by my interpretation and by the names he stated in the poem, it was written for the people he had known that were executed during the revolt of the Irish. I believe he was referring to their death as the "terrible beauty," seeing as he was against what they were fighting for (the terrible part) yet he was also for what they were fighting and ultimately payed with their lives for (the beauty). In his poem Yeats refers to two men he has dreamed of which can show both sides of the terrible beauty, one he refers to as his "helper and friend", "sensitive", "daring and sweet his thought" while the other man is "a drunken vainglorious lout" who has "done most bitter wrong." The "terrible beauty" is contrasted in many ways in this poem referring to his comrads, and his own views and battles with both sides.