Peace is not an emotion.
Peace is fundamental and eternal.
E-motions (energy in motion) are changeable and time-bound.
Emotions come and go.
Peace reigns supreme.
Time (duality) occurs against the backdrop of eternity (non-duality).
Another way of saying this is, peace is the field on which emotions play out. In this way, duality and non-duality are inseparably bound.
The time-bound self (ego) cannot conceive of peace. It knows only fluctuations in time and space.
When individual consciousness expands beyond itself, it discovers eternity.
Liberation occurs when time & eternity make love and collapse into one another.
In this state of consciousness, one is in Time but not of Time simultaneously.