Earthbound doesn't mean as much to me as it does Mother 3. I missed the SNES and Earthbound growing up, but I played through Mother 3 a few years ago. I got through it by playing on my 1-2 hour long bus-ride to and from highschool (it was a magnet school my stop was one of the first and last).
If it weren't for those huge swaths of time, I would've never finished that game... and it wouldn't have made me feel, made me laugh, made me think, made me understand, or made me cry. After I finished the game I sat there and just thought for an hour straight or so. I began to understand what it was people loved about Earthbound-- that world, those characters, and most importantly, the way Shigesato Itoi's voice oozed through every digital stitch holding the game together.
As I read up more about Itoi and his work, I began to love the game more and more. Eventually I returned to try Earthbound again and loved it even more understanding what exactly the nuance loved that everyone was going nuts about.
So I guess with that long story, what does Earthbound me to me? It means making a world and experience where everyone is welcome and those without voices are given a voice. A world where the little guy isn't the most important person in the world, but instead is show how they fit into the greater scheme of the world, regardless of size, and add a part to what makes our planet Earth so unique-- from the tiny mice, frogs, and bees, to the powerful policemen, shop owners, and musicians, all the way up to giant scary titans, chimeras, and crazy taxicabs-- everyone has a place in this world and a role to play, and the mere existence of such things make the experience of living all the sweeter.