I love people that can sweep you with complicated and elevated words but I also absolutely enjoy the everyday colloquial talk. Part of that colorful language that leads you into the idiosyncrasy of the people are those 'common sayings'. I am not so sure they can be translated and explained since it appears to me that they are felt more than said, but anyway here is one:
SI EL RIO SUENA ES PORQUE PIEDRAS TRAE -IF THE RIVERS MAKES NOISE IS BECAUSE ITS CARRYING ROCKS-
The expression means that if there is a rumor going about, it probably holds some truth.
VERY IMPORTANT TO KNOW IS THAT GUATEMALA, AS THEY SAY, IS THE LAND OF THE BOLOS, BALAS Y BOLAS (bolos-drunk people, balas-bullets, bolas-vicious rumors), so I wouldn't take the saying at face value.
The picture is at San Buenaventura on Lake Atitlan. I had the picture and every time I saw it it reminded me of this saying.