Well this really isn't a poem (ok, it isn't a poem at all) it's more like a quote or something. It's really pretty, and could be a good idea for a poem, but it'll need to be a bit longer than that dear. Try reading some poetry and then maybe come back to work on this. I'll be looking forward to seeing it turned into a poem!!
~Cat
What then? Shall we sit idly and say
the night has come; it is no longer day.
Yet as the evening twilight fades away,
the sky is filled with stars, invisible to day.