Paradise and Architecture:
In simple terms, the word "paradise" means the work of the one creater in such a way that it ensembles peace and harmony in a complete and unique way as never seen before. While the creater may also be termed as an architect who draw a map so unique and complete in all senses. For any man who draws a design or curves a structure with the beauty inside it is somehow related to the art of making paradise. As through the work of an architect people get to know the one true creater.
Explanation:
Paradise in Christianity:
In Christianity, the belief is such that Christians who do good deed in this world, along with the saints will be rewarded by the merit of good deeds they do. As there are three different forms of the holy place in the after life  for the believers the first on is Heaven, the second is Paradise, and the third is refereed to as "the city".
In a place where under the throne of one true God, the saints and believers will rest in differently curved and beautiful structures. However, the structures described are same from both the Islamic and Christianity point of view.
Paradise In Islam:
From the Islamic point of view there are two different forms of after life, as it will be rewarded to all the mankind on merit. If one is a believer and follows the true path, even if the person was once a true christian or a true jew then that person will be awarded along with all the true Muslims who are believers. From the Islamic point of view there will be peace and harmony inside the place. As there will be rivers of all the precious elements, while there will be astonishing structures having elevated heights, and beautifully assembled pillars.
There will be big palaces for the true believers that are never seen before by that person.As the structure will be more then majestic and there will be servants for the people inside the paradise.
Calligraphy as an art and geometric motif:
Calligraphy is the art to curve words and write them with such an emotion and sense they represent a specific rhythm, culture and generation inside them, as calligraphy sometimes is only done by craft man who belongs to the generation of such craftsmen as it can not be learned in month or years but it takes generation to learn a bit out of this field.
And geometric motifs may be seen as senseless or meaningless to any ordinary person but it represents a specific culture and religion in a different sense. As the artistic work can be seen inside the mosques and cathedrals, representing each generation.
During the byzantine imperial rule unique form of artistic work was crafted to tell stories about different generations and royals. As they also made different structures and mosques to represent the religion Islam and had great influence in creating unique artistic work. Now, doing calligraphy is more different then that as writing consists of a rhythm, and a sense of consistency inside it which consists a set of stories relating a religion or sacred story.
