Essential oils can become more powerful therapeutically when blended correctly These blends are known as synergies. A synergy is a mix or blend of essential oils all similar in therapeutic properties and chemical families.
Definition of nightingale for English Language Learners. : a small brown European bird that sings a beautiful song especially at night.
In mythology, the bluebird is the universally acknowledged sign of happiness, prosperity, good health, and the arrival of spring. The beautiful blue of its plumage is associated with the sky and eternal happiness. Unlike the swallow, it does not have a 'dark' side.