Single flower... spathiphyllum?

Today has been a very up and down day..both mood and activity and while my new year resolution was to walk daily the best I achieved today was round and round in the garage tidying it. Only 2764 steps recorded which is pathetic bit how I have felt all day, and no photography. Now I am feeling more peaceful watching a lighthearted film and good company and there's one flower on what I think is called a peace lily.