How can be used returned temporary link in best way?

• for example I have

  class A {
       AHelper&& getAHelper(){
           return AHelper();
      }
  }
  
  int otherfunc(){
      A a;
      xfunc( a.getAHelper() );
  }
  
  

  May I use it only if I want to pass it to another function? What are benefits?