Some human beings feel inclined to use the same words to describe different experiences. It can be helpful to differentiate among ideas of happiness, joy and bliss. Consider your range of love energy vibrations. As you attune to true self, you learn the power of Self-disclosure and what unfolds energetically within. Soul is known and felt.
Let's say that happiness is grounded in personality and is experienced as a reactive emotion.
Joy may be felt as a quality of the soul. It is experienced when its heart energy aligns in the mind.
Bliss is the fundamental nature of Spirit and is not realized until oneness or soul-realignment occurs.