Retrieving single options array and using it

I am designing theme options page and storing it under

register_setting( 'inspire-option-group', 'inspire-options' );

and inspire-options contains all the theme variable such as logo, favicon, twitter link etc. As i understand i pull out of the array using get_options

$settings = get_option('inspire-options');

and then individual variables

echo $settings['logo'];

My question is how do i make this $settings array global and use throughout the theme. I tried using global $settings and it is not working.