In the book Night by Elie Weisel, in section 1 why did Eliezer cry when he prayed?
Eliezer felt a very deep connection to God. He became particularly aware of the depth of his feelings when he prayed to the God whom he loved, worshipped, and yearned to know more completely. He prayed to express his devotion to God and to ask God for answers to the questions he had.
As a devout Jew, Eliezer recognized Jerusalem as being the most holy city in the world. The Temple in Jerusalem, that magnificent structure that had been built by Solomon and destroyed by various groups of invaders, had been God's home on Earth. It was recorded in the Torah that God had directed the ancient Israelites to "make a sanctuary for me, and I will dwell among them." (Exodus 25:8) The Tabernacle served this purpose while the Israelites wandered in the desert and until Solomon built the Temple in Jerusalem. Its destruction was a terrible thing for all devout Jews. Elie mourned its passing with his prayers and his tears.