EBS R12.1.3 - explanation about access to a profile option

Hello,

Contexte: Level Site, customized System Profile option: XXX     Value : YYY

On tool TOAD or SQL*Plus connect as apps schema:

     select fnd_profile.value('XXX') from dual;

       --> YYY

If i well understand, calling fnd_global.apps_initialize is usefull just for the profile options security_group_id , login_id, ...

But why could we have immediately the value of the customized option XXX? No call to fnd_profile.value has been done before.

Thanks in advance,

Armel