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.
Specific breeds of birds can also symbolize personality and character traits as well. For example, a canary symbolizes the power of the voice, whereas a cardinal represents renewed vitality and a sense of self-importance.