you don't have to write 1-2 pages on why you want to go to ireland. many of the things are the same as you'd use at home; why do you want to be a doctor etc. but you definitely should mention/discuss why you want to go to ireland, and what you feel you could offer to the irish programs and your classmates ie how YOU being there would enrich the program (remember atlantic bridge is ultimately a cultural enrichment program getting north americans to study med and vet med in ireland)