just because M has a wedding feeling, i think it'd be a good song too. but i personally would probably chose CAROLS. maybe not to walk down the isle to because it's slow and sounds kind of sad, but i think it's a great choice for a wedding song.
the whole "Please laugh away, these days of mine are filled with false things" lyrical part of Secret ruins the wedding feeling for me. it's makes it seem like it's a bad feeling or something.
maybe Endless sorrow?
if i had a summer wedding, i would probably pick BLUE BIRD as one of the songs and maybe fairyland too. they both have great lyrics and a nice melody.
later on through the night i'd probably end up playing HONEY, even though some people find it to be really annoying, i love the lyrics. XD and then independent would most definitely be the ending song of the whole wedding. yup, i've got it all planned out. XD