Spearmint is the essential oil that can help you steal little moments of calm back as it gently uplifts with a minty and bright aroma.
Often confused with Peppermint, Spearmint is cooling and more nuanced.
For thousands of the years, Spearmint’s medicinal and therapeutic properties have been explored. The Ancient Greeks used it to restore the body while adding a lovely fragrance to their bathwater. The flowering herbs are put through a steam distillation process to extract the oil, which can add a minty note to floral essential oil blend. (edens garden)

– Inhaled, it is truly a memoristic anti-depressant. It relieves mental strain and fatigue, cheers you up and tonifies your entire system.
Therapeutically, (…) for remembrance of childhood and a feeling of freeedom and lightness, Spearmint oil is the best. (Jeanne Rose, The Aromatherapy Book)

– A mildly stimulating, memoristic antidepressant; Spearmint is bound to make you happy, relaxed and joyful, hence, “Oil of Joy”.
(http://www.jeannerose.net/articles/25_essentials.html)

In terms of fragrance energetics, Spearmint is sweet, green, pungent and cool. As applied to the psyche, these qualities signal the potential for promoting emotional stability and renewal. By addressing the sensory-emotional dysregulation caused by deep limbic system hyperfunctioning, Spearmint can be helpful for those unable to let go of distressed feelings and negative emotions. Just as it can treat stagnation in the lungs and the upper digestion, so it can give one the energy to take a fresh look at stuck feelings, emotional conflicts and the like. In so doing, Spearmint by olfaction can help resolve emotional stagnation, reduce emotional confusion or ambivalence, and help the individual move forward in a more positive and conscious direction.
(Peter Holmes, Aromatica, vol. 1)