Abstract
The tight competition in Islamic banking industry today requires organizations to have employees who have a strong commitment and are willing to spend the time to finish the job properly. Islamic banking has a market share that is still low if compared with conventional banks, so it has a big challenge to improve the performance and competitive advantage. Employees who are willing to have extra work for their organization will lead to the improvement of their performance and their organization. Voluntary behavior of employees that is free from formal reward system and beyond the role that should be done is very important in an organization. Several studies have examined multiple factors that affect organizational citizenship behavior (OCB), but it is still slightly stressing on the importance of psychological aspects of meaning in life and meaning of work. The purpose of this study is to examine the importance of meaning in life and meaning of work factors in improving OCB in the organization. The sample in this study was employees of the Islamic banks in Central Java, amounted to 100 people. The data collections were conducted by using questionnaires and indepth interviews. Meanwhile, to analyze the data, the structural equation model with Partial least squares software was used. The results of data analysis showed that meaning in life have a significant effect on satisfaction and organizational citizenship behavior. Meaning of work also has a significant effect on satisfaction and organizational citizenship behavior. An employee‟s job satisfaction significantly affects the improvement of organizational citizenship behavior.

Keyword: meaning of work, meaning in life, job satisfaction, organizational citizenship
behavior and Islamic banking