This is a noble aspiration and a simple definition is to create an environment that is optimal to safely rear children and provide them with the tools which can enable them to pursue happiness and build a better world than our own, and so on, and so on, ad infinitum. You can’t go wrong with that definition. It describes a safe and nurturing place for everyone and encompasses all the positive social mechanism thus far invented by humans to reach this goal.
Basically, this is the spirit behind Israel Kamakawiwo’Ole’s version of this song.