name the poet and poem please

Please help me. There is a poem I remember but I've forgotten who it's by. I think they were a modernist poet, and maybe a famous one. I've checked Eliot and Pound but i can't find it in there works. Its a poem with a lot of repetition in it. I think it starts off about white light in a white room. The word white is repeated often. thats all i remember. Please help.