Guardians should also understand that certain life forms — indeed, entire worlds — have modes of expression that we may find not only bewildering but potentially physically harmful. As such, preparation is vital. For example, the entire planet of RnHSoMu, where not only are the hills alive but so is just about everything else. Communications consist of what initially appears to be overlapping, non-stop streams of painfully loud and inordinately inane cocktail party chatter — and yet on closer inspection (assuming of course that one has not been driven completely insane), it is an extremely subtle mode of musical expression and verbal information. That which superficially sounds like a vacuous description of a "simply mad cruise we took last week" is instead a deeply considered philosophical discussion on the nature of work ethic in an otherwise uncaring universe.