Lemon oil works primarily with the digestive, immune, and respiratory systems, promoting healthy function in the body. Aromatically, it's invigorating in a wake-you-up sorta way. It's also one of the most popular essential oils and has about a gazillion uses.Emotionally and spiritually, lemon essential oil promotes focus and clarity. It's uplifting affects awaken the senses, clear the mind of distractions, and help a person tune in to the task at hand. It helps a person to overcome confusion or doubt, fatigue, overwhelm, and lack of enthusiasm, as well as helps to clear self-doubt, limiting beliefs, stagnant energy, and rigidness in the mind, heart, or body.