**1. Introduction**

In the eyes of the beholder, the fresco programs of the Byzantine churches were not only a didactic textbook for their religious education through visual paradigms but also a whole world of ideological attitudes and ideas shaped in aesthetic forms of attractive vistas. This particularly refers to the painted cycles illustrating Evangelic stories and Biblical episodes that were designed and depicted across the walls of the temples to give the faithful the necessary

© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2017 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

arguments to upgrade and strengthen their belief. The first register of the painted program of any Byzantine church, which encompassed a gallery of represented saintly figures, was the one closest to the beholder and therefore most valuable in regard to their self-recognition in terms of ideological and religious perception and comprehension. Belonging to different categories, established according to the diverse roles they have played in the process of development of the faith and its institutions, these saints gained their specific place and function within the painted ensembles of the religious edifices (angels usually guard the entrances, apostles support the vaulting structures, bishops fill the sanctuary, holy warriors decorate the pillars, etc.). Hence, they became constitutional members of the great assembly of Christian characters, mandatory for embellishment of the lowest zone of the painted church decoration. Represented in larger-than-life dimensions, depicted in full frontal positions, and marked by the characteristic features of their personal contribution to the faith, the saintly figures have become the closest "collaborators" of the believers in the continuous process of religious upbringing of the congregation.

In order to meet the emotional and spiritual needs, as well as expectations of the faithful in the process of the religious interaction, the saintly images had to express a certain amount of aesthetic energy in order to "attract" believers' attention and fulfill their didactic function of supreme and unchallenging role models. Therefore, a catalog of saintly images was established in the frames of which diverse characters have gained different aesthetic features in regard to their place in the history of the Christian church [1]. Their social background, religious function, and cultic implications were also encompassed in this aesthetic design in a form of visual configuration that reflected not only their physical appearance but also the overall charisma [2]. In that manner, the typological structure of the different categories of saintly images could be expressed through their portraiture, corporeality, and emotional expression appropriate to their deeds done for the faith, as well as adequate to their educational mission for the believers. This "functional beauty" of the Byzantine saints was due to the canonic background of their aesthetic concept established on their sustainable spiritual roles played in the ceremonial story of salvation [3–5]. However, besides the significance of their historical acknowledgment, their sustainable function for the congregation was much more important if one bears in mind the power of their visual appearance over the vigilant senses of the worshippers in the mystical ambience of the Christian church. Reflecting the inner spiritual charge through a set of carefully drafted visual features [6]that should act as a silent, yet powerful PR, the physical appearance of the saintly figures became a painterly matrix of spiritual beauty of the depicted characters which grew into a luxurious catalog of pure and undisputed sacred portraiture.

Although the category of beauty as a visual determinant of someone's physical appearance within the fresco ensembles was never in the focus of Byzantine scholars, some attempts to analyze its structural core have been made recently [7]. These efforts spring from the notion of the unavoidable visual determination of a saint or a category of saints as a prerequisite for their successful intercession between the believers' expectation and the higher power of ultimate soteriology. In that regard, the wholehearted angels, the resolute apostles, the wise bishops, the brave soldiers, the dedicated healers, the self-denying martyrs, the devout hermits, and the modest female saints were all given distinctive features of facial and corporeal character which reflects their inner—spiritual, as well as external—physical capacity. If one should accept the idea that *the form indicates the essence*, that is the visual structure is an external indicator of the substance, then the outlook of the saintly images should be seen as a collection of qualitative references to their overall personality, most importantly to their ability to transmit theological messages to the congregation. Accordingly, the physical appearance of the saints could serve as a powerful instrument for visually enhanced religious action and therefore it should have been designed and depicted in the most corresponding manner. That manner encompassed distinctive features of physiognomy, facial exposition, stance, corporal expression, attitude, temper, and costume of the saintly representations as structural components of their psychological chemistry, as well as physical attractiveness united in the aesthetically provocative and artistically compelling compound of *beauty* [8]. In this chapter, we analyze the different categories of saints in relation to the iconographic benchmarks of beauty encompassed by their specific and highly recognizable physical appearance.
