What are the major characteristics of the Middle Ages to 1642

Why do people have different viewpoints about the same work of art? minimum 1 paragraph

After exploring the selections from the  upanishads  and the  tao te ching, what congruence do you see between them? what is the central message of each text? are there any similarities in the worldviews they espouse? do any of these ideas resonate with your own life, beliefs, or worldview? discuss the ideas found in both texts as well as your reactions to them.  important notice:   reflection responses should be between 200 and 250 words total and present a clear main idea (thesis) supported by specific examples 

Riddle me this: i am first in earth,second in heaven,appear two times in aweekyou can only see meonce in a year, althoughi'm in the middle of sea.what am i?