Final answer:
The provided question seems theological and does not relate to factual historical motivations. Key historical events such as voyages of Zheng He, Neo-Assyrian policies, mercantilist colonization purposes, and Iberian explorations were driven by a mix of political, religious, and economic factors. However, these examples cannot be used to extrapolate the actions of a deity.
Step-by-step explanation:
Understanding Historical Motivations
The question 'Why does God return after a long absence?' does not pertain to a historical event or figure but is rather a theoretical or theological proposition. Historical motivations, such as those seen in the voyages of Zheng He, practices of the Neo-Assyrian Empire, mercantilist theories related to colonies, and the goals of early European explorers, were often shaped by a mix of political, religious, and economic factors.
For instance, the main reason for the voyages of Zheng He was a. to impress other states with the power of China. This was aimed at demonstrating Ming China's might and influence to neighboring states. The Neo-Assyrian practice known as 'calculated frightfulness' served b. to demonstrate the cost of rebellion and maintain control over their empire. When considering the main purpose of colonies according to mercantilist theory, it was d. to provide natural resources for the home country, thus enriching the motherland's economy.
Further reflecting the multifaceted reasons behind historical events, the Portuguese and Spanish were influenced by a. the desire to spread Christianity and counter the influence of Islam during their exploration era. In the case of the British Raj, the primary reason for its establishment was a. the failure of the British East India Company to prevent unrest in India. Each of these motivations represents the various elements—political, economic, and religious—that have spurred civilizations and nations throughout history to undertake significant ventures and reforms. Thus, any assumption of 'God' returning after an absence would likely require an analysis within theological discourse rather than a historical context.