Happiness and sadness is a sense of self-expression which can be reflected from face expression. Mostly, this self-expression holds the role of a face expression which is so important in some activity and could be adjusted by base on scale of need. Not only being a certain fashion trends that a make-up faces are made only for showbiz purposes, but there are times in some ways people can create a makeover on his face with psychological factors support that wants to be disclosed or the mood to be covered, commonly use to describe a noun known as the “Mask”.
Mask is a shape which is generally used to cover a face. Mask at the beginning of its development is used to realize the imaginary form of a person and is usually associated with religious and magical atmosphere and of course with highly creativity power and art creations. Trust in the form of nature deities and forms of real ancestors reflection is often poured into the form of a mask for a complementary means of a deity or ancestor worship ceremonies at that time. The form of the arts was diverse; form of human faces up until animal’s forms, as in most of African, the mask takes the form of an animal because it is believed to be used as a means to communicate with the Gods and ancestors. While in the Asian region the mask was used to give more meaning to the definition of the characters in such colossal epics Mahabharata and Ramayana which is originally from India, then spread to several regions in Southeast Asia including Indonesia, especially Java and Bali. Development of form and masks character in Java and Bali is much influenced by Hindu & Buddhist cultures of India and China. Universally, mask is used to display the expression of a character in a ceremony or in theatrical performances. In a historic development function of the mask and its power been shifted to other purposes such as face shield even for amusement. Masks are not only used on the face of a dancer or mask user, but there are times when the mask is also used in other parts such as body or finger. Other function is a mask often used in festivals, carnival, even to be used in the Halloween event. 
Mask called “Topeng” in Indonesia. By the form that commonly used by the mask dancers, Balinese “Topeng Bungkulan” distinguished as a mask form covering the entire face, and “Topeng Sibakan” is a shape of a mask that just cover half part of the face. “Topeng Bungkulan” is usually used in the Balinese theatrical drama using mastermind and sounding with word and song wearing Ancient Balinese language or a language derived from Sanskrit. While “Topeng Sibakan” on the show not wearing mastermind because the wearer can use their own voice.
In Balinese culture, mask usually became the most important part in the mask dance, and having a very close connection with religious ceremonies because it is often staged in the temple or during religious events which is so sacred. Balinese people call the mask as “Tapel”. Dance mask that very associated with religious ceremonies and performed during some religious ceremony is known as “Topeng Pajegan” or “Topeng Wali”. This mask dance is performed by a single dancer and must bring a few roles using different masks in a dance session. Dancing with five or more dancers who wear masks with different characters called “Topeng Panca”. Appearance of several figures from “Topeng Panca” can also be displayed in “Topeng Prembon” Dance. Mask dance performance that perform comedy road stories or folklore of ordinary Balinese people called “Topeng Arja” or “Topeng Bondres”.
Balinese masks are also used to represent the characters with their respective duties and functions, in order to bring a demand in the mask dance. “Topeng Tua” or “Topeng Keras” represent a character of a wise holy man; it is figure “Pangelembar”. Other strata character known as the figure of “Penasar Kelihan” and “Penasar Cenikan”. There is also a figure called “Ratu Dalem” and “Ratu Patih”. There is also a character that figure ordinary people named “Bondres”. But the character which is acted by the mask dancers must also be able to convey the mask character to the audience explicitly or implicitly.
Theatrical masks nevertheless can sometimes be understood only with the help of the voice from a puppeteer. Strong character traits by a mask user will bring the story in amusement role becomes something meaningful to the audience, although sometimes the wearer’s mood is very different from their mask figure played on role. Likewise for humans also, role of character is inherent in each individual and can give a beautiful conclusion that the world is non-different from a mask theater. What role is on performed behind your face mask, is it joy or sorrow?
Distance and time in dynamic motion of the universe, build a space for living things to move in pursuing natural movement. Inspiration of natural movement has given participation for the creation of art movements in the human world and poured into a form of popular dance. The art of dance is a form of real information that living things were artistically capitalized in their respective lives. Civilization has taught living things to create communication, either verbally or without words which must be understood by both parties by using non-verbal body movements only. In the art of dance, the dancers must be able to give dance meaning to the recipients, so the audience can interpret the story of the dance movement itself. The scope of the art of dance not only as an entertainment, but has a broad scope in terms of its implementation and usage. In some countries, a dance has been known before the existence of cultural civilization, but maybe only giving a meaning to the application of a religious life of mythology and for healing treatment, up to those reasons even now are still found in some countries and regions, the existence of dance that originated from ancient times are still preserved as one of the cultural heritage of ancestors.
In the review of the cultural event Pesta Kesenian Bali 2009 this time, will be appointed on the theme of dance “Leko”. This dance is one of so many Balinese ancient dances which might has already rare to be performed and not much known by Balinese society. Today, Leko dance could be found only at Jembrana, regency at Western area of Bali.
Bali, island surrounded by sense of mystics and has a magnetic attraction, Island of God with so many culture and tradition that still exist until now. Equilibrium between vertical and horizontal nexus already contribute and taking role on every side of Balinese community. What could be a reason why Bali always exists as a traditional community and always has a visitor from modernization flow outside of Bali almost every year? Believe the answer is Balinese community trustworthy to the matter that they always called harmonization relationship between a human and God as a creator, protector, and executor of this universe. This is also became a reason why religion in Bali has a harmonic rhythms with its traditional culture. Hindu community in Bali believe that three avatar of God as a creator, protector, and executor had bring so many phenomenon in life, where one of those is law of nature between good and evil, wrong and right, beauty and beast and many differences in this universe and became appear also in traditional mythology of Bali. One of those is “Barong” that represent in Barong & Rangda Dance, this triumphant dance is very popular not only for Balinese people but also for viewers around the world.
Actually, Barong is a form of Bali pre Hinduism inheritance, being transformed to a figurehead or mask of an animals or ancient human which has magical forces. Mystic of Barong mask came from its wood material which taken on cemetery area. Could be in the year of being created, Barong mask has so many different type, nowadays there are several being known, for example: Barong Ket, Barong Gajah, Barong Asu, Barong Landung, Barong Bangkal, Barong Brutuk, Barong Kedingkling until Barong Sai. Barong character in Balinese mythology is reflected of spirit in a human itself, where in Balinese Hinduism believe that a human has a”guardian sibling” when being born in the nativity process, the guardian elements are blood, placenta, and fetal membrane. All these elements will always protect and guard a human all through the process of life till being reunited again with the universe. Barong as a king of spirit is one of those elements as “guardian sibling” and has a power to protect human from any evil through the interaction process of life.
Performance of Barong & Rangda dance bring us to the reflection of how we suppose to live, good and bad spirit on every human on this universe will always be a substance in law of nature, always existing in all circumstances.