The array of lights illuminating the 47-story Bank of America Tower quite literally provides a beacon in a city that too often seems to lose its way. Public officials are hauled off in disgrace at an alarming rate. Racial and ethnic tensions threaten to boil over at any moment. Cold-war passions still dominate civic life. But on any given night we can glance up at the Miami skyline and see the tower bathed in soothing bands of colors: red, white, and blue on the Fourth of July; red on Valentine's Day; orange and green to salute UM's football squad; icy blue with giant snowflakes at the winter holidays. We gaze upon it and instinctively our mood softens. Beyond that, the structure's history entails the kind of bumpy ride that is the Miami experience. Designed by famed architect I.M. Pei, it was inaugurated as the headquarters for David Paul's CenTrust Savings Bank in 1987. CenTrust collapsed, and Paul went to prison for gutting the institution. The Resolution Trust Corporation has sold it twice since then. Current owner is National Office Partners, which considers the building's illumination to be a serious matter. "We view this as a civic-pride thing, really," says property manager Jay Windsor. Two workers require nearly four hours to change the colored lenses on nearly 400 1000-watt lights. But one glance at the incandescent glow over a darkened Biscayne Bay and you can see it's clearly worth the effort, a reminder that no matter what else, we live in a beautiful place. Sometimes that's enough.