Aromatherapy. 

Essential Oil:

An essential oil is a concentrated, hydrophobic liquid containing volatile aroma compounds fromplants.  Essential oils are also known as volatile, ethereal oils or aetherolea, or simply as the "oil of" the plant from which they were extracted, such as oil of clove.  An oil is "essential" in the sense that it carries a distinctive scent, or essence, of the plant. Essential oils do not as a group need to have any specific chemical properties in common, beyond conveying characteristic fragrances.  Essential oils are generally extracted by distillation. Other processes include expression, or solvent extraction.  They are used in perfumes, cosmetics, soap and other products, for flavoring food and drink, and for scenting incense and household cleaning products.  Various essential oils have been used medicinally at different periods in history.  Medical applicationproposed by those who sell medicinal oils range from skin treatments to remedies for cancer, and are often based on historical use of these oils for these purposes.  Such claims are now subject to regulation in most countries, and have grown more vague to stay within these regulations.

Interest in essential oils has revived in recent decades with the popularity of aromatherapy, a branch of alternative medicine which claims that the specific aromas carried by essential oils have curative effects.  Oils are volatilized or diluted in a carrier oil and used in massage, diffused in the air by a nebulizer or by heating over a candle flame, or burned as incense, for example.
Aromatherapy:

Aromatherapy is a form of alternative medicine that uses volatile plant materials, known as essential oils, and other aromatic compounds for the purpose of improving a person's mood, cognitive function or health.  The effectiveness of aromatherapy is yet to be scientifically proven, however some evidence exists that essential oils may have therapeutic potential.  Since some essential oils such as tea tree, have demonstrated anti-microbial effects, it has been suggested that they may be useful for the treatment of infectious diseases.  The evidence base for the efficacy of aromatherapy used to treat medical conditions remains poor with a particular paucity of methodologically rigorous studies. 

Shakra  (derived from the Sanskrit cakraṃ चक्रं, pronounced [ˈtʃəkrə] in Hindi; Pali: ॰हक्क chakka,Chinese: 轮, Tibetan:  khorlo) is a Sanskrit word that translates as "wheel" or "turning".  Chakra is a concept referring to wheel-like vortices which, according to traditional Indian medicine, are believed to exist in the surface of the etheric double of man.  The Chakras are said to be "force centres" or whorls of energy permeating, from a point on the physical body, the layers of the subtle bodies in an ever-increasing fan-shaped formation (the fans make the shape of a love heart). Rotating vortices of subtle matter, they are considered the focal points for the reception and transmission of energies.  Seven major chakras or energy centres (also understood as wheels of light) are generally believed to exist, located within the subtle body.  It is typical for chakras to be depicted in either of two ways:  Flower-like, Wheel-like

In the former, a specific number of petals are shown around the perimeter of a circle.  In the latter, a certain number of spokes divide the circle into segments that make the chakra resemble a wheel or chakra.  Each chakra possesses a specific number of segments or petals.  Much of the original information on chakras comes from the Upanishads, which are difficult to date because they are believed to have been passed down orally for approximately a thousand years before being written down for the first time between 1200–900 BCE.