Examples of essential oils used and the benefit:

Lavender: used to calm the mind, decrease inflammation and balance the emotions.
Cypress: ease muscle tensions
Lemongrass: help liniments heal
Frankinsense: comfort with emotional trauma
Peppermint: Great for improving concentration and mental sharpness.
Patchouli: This earthy scent can help release negative emotions and is beneficial for the skin.
Marjoram: A woody, spicy aroma that will soothe tense muscles after exercise.
Orange: Uplifting while calming to the mind, orange brings peace and happiness.
Thyme: A warming oil that is both powerful and penetrating. Thyme supports the immune system as well as all other body systems.