.it has an unacknowledged hold on so many of us:It has an unrecognized power on so many of us. have (exert)a hold on/over sb.:have a control of/over sb.e.g. ● This experience exerted a powerful emotional hold on him. The government has a firm hold on public opinions. .it has an unacknowledged hold on so many of us: It has an unrecognized power on so many of us. • have (exert) a hold on/ over sb.: have a control of/ over sb. e.g. • This experience exerted a powerful emotional hold on him. • The government has a firm hold on public opinions