The phrase "pure bliss" means a state of perfect happiness, joy and contentment. It is an idiomatic expression that describes an experience or feeling of intense pleasure and satisfaction without any negative emotions or distractions. The term "bliss" refers to a state of being free from worry, trouble or pain, while the word "pure" implies that the happiness experienced is unadulterated and genuine. In essence, when someone says they are experiencing pure bliss, it means they are feeling an extremely joyful and fulfilling emotion without any sense of guilt, regret or anxiety.