ooh, CreativeFire, I love your idea of the swords being like a fence protecting the pastoral scene behind it. The fact they're so close, in your face, really makes them look like a fence!
I think of the swords as communication, words, but also as weapons and fighting. All of those things must be layed to rest here. Have the flowers grown up around the swords? They don't really look like they've been there very long, so we've only just begun our rest, which perhaps won't last as long as we'd like it to. Literally, it makes me think of four people who've come to this place to rest. Maybe they don't always agree... maybe three were fighting in the previous card and a fourth intervened. He said "we have to talk this out, but first, we all must put down our weapons and calm down". So they go to a Sacred place, the passage tomb Newgrange (I've been there, THOUGHT that's what it looked like!) If I recall correctly from the tour I took there, it probably wasn't actually used to bury people, but rather for ceremonial reasons. It was designed in such a way that on the Winter Solstice the light would hit just right and illuminate the inside! Sheesh! Obviously you wouldn't bury somebody in a place like that! So, our 3 fighters and their intermediary have come here to make peace!