Essential oils are not really oils but they are liquid that is extracted out from the ''essence" of the plant. The common way to extract the oils is through steam distillation that has been existing for a thousand of years BC. It can be from the leaves, roots, barks, flowers, fruits and sometimes from the animals.
The basic benefits that you can get from Aromatherapy are relaxation, sensuality and stress relief. It serves as a complementary medicine to orthodox medicine (prescribed by professional doctors). Its therapeutic touch works well with mental and spiritual healing.