The kind of happy that I would be lucky to ever be able to experience again . That grasp is perpetually slippery , it 's when it 's firm that is rare . And it 's always a temporary feeling of stability and control . A temporary balance .

(I) The feeling that comes in rare moments of permanent balance of stability and control .; (II) The feeling that everyone is under my control , that I have all the power I need to be happy .; (III) A slippery slope of feelings that make a person happy and then thrust them back down to earth .; (IV) The feeling of complete happiness , that no one on earth could be as happy as I was at that moment .;
Answer the following question: What type of feeling am I referring to that is few and far between ?
(IV)