An "important symbol" refers to a thing or object that represents or stands for something significant or holds significant meaning in a particular context or culture. Full definition
Physical space and distance are important symbols of human interaction and also contribute to the quality of those interactions. (slaw.ca)
Which is why the desert is such a strong and important symbol in scripture and throughout the history of the church. (nakedpastor.com)
Instead he has proven each and every player is expendable and that the most important symbol for the club is the numbers on its balance sheets. (chiesaditotti.com)