The heart of Medieval people was imbued with Christian faith to which they gave monumental expression in their Cathedrals. Look at the pointed arch-doorway of Notre Dame Cathedral in France to get an idea of how much time and effort it took to draw and sculpture the rows of figures.
A Cathedral took several generations to complete. Some were financed by kings, others by occasional Church taxation but in all these cases much individual help was solicited. Much of the stone, marble and wood were donated. Peasants offered their horse, ox and cart to transport material needed. Others gave of their time and labor. A knight would sacrifice his gilded helmet, and his blade of Damascus with his coat-of-mail. Foreman of a work held weekly auction of articles in the square to raise funds, etc. A Cathedral in essence was an offering made to God by many people for his glory and expiation for their sins. This is not to say that human glory did not play its part.
And skilled workers:
"They climbed on sketchy ladders towards
With winch and pulley hoisted hewn rock into heaven,
Inhabited sky with hammers, defied gravity,
Deified stone, took up Gods house to meet Him, ..."
Guild meanders: "On signing the articles of the union or guild, he will learn that it is intensely religious, that he must attend Mass Sundays and holidays, lead a moral and Catholic life, abstain from swearing, drunkenness, and immorality. He will learn that the guild supports its own chapel and priest to say an early Mass daily for them. He will be told that the Lodge, or workshop, is like a hall of justice, where the rights of each man, above all his free personality; must be respected. He will learn that all teaching is free to apprentices, and that, while there is a preference for the sons or relatives of the masters, natural aptitude and vocation are especially sought for. All this he will learn at Ely or Peterborough as well as at Toledo or Burgos." (Webpage: The Middle Ages:Cathedrals by Thomas J. shahan)
The Cathedral with it pointed arches and tall pinnacles reveal the majesty of God. Countless statues, stained glass windows and the main altar speak of God's revelation to man and of those men and women who have followed the dictates of God by faith in his only Son, Jesus Christ. Kings were also depicted or sculptured because this is where they were crowned to signify that even the mighty of this earth come under the sovereignty of God. There was much color in the original statues and walls which time has defaced. It was beautiful with a beauty which spoke of the transcendent beauty of God.
On the Cathedral parapets we see strange and ugly figures of beast and man (gargoyles). The general opinion is that they were created to ward off evil but they must also have reminded medieval onlookers of the ugliness of sin, evil and idolatry.