R is for Rest. A nightmare-free sleep.
Waking up in the morning not haunted by the memories of what you dreamt.
No sudden, racing thoughts running through your mind when you need them the least: why in the middle of this work meeting am I thinking of what I should have done differently?
Not waking up in the middle of the night and, instead of counting the sheep, start counting the people you lost in your life: could you have done something not to let slip away?
Rest, the rest that comes with being at ease with yourself, that peace of mind that makes you fall asleep like a baby, free from remorse, free from regrets.