Does this mean you should not experience moments of ecstatic joy? There is a subtle difference between the joy and bliss of “being” which one experiences in pure communion with the spirit, and moments of mania one experiences as a human. This mania must seek its equal and opposite reaction in order to find your way back to the center.
So, there is no “should” or “should not” about it. If you are willing to experience both sides of the swing of the pendulum, play with your emotions. Swing as wildly as you care, but this can be a bit hard on the body and mind. You will eventually find it far more peaceful to observe from the center and be bliss. You do this by aligning with your true self, which has no attachments or aversions, and rising as high as you can on the vertical axis of consciousness to connect with the real you. Herein lies peace.