The aim of the present study is to clarify the nature of integration between the individual and the organization. I have utilized four analytical tools in this endeavor – forms of association, theoretical starting points, integrating factors, and principles of integration. The forms of association have been taken from Amitai Etzioni's model for describing the interplay between members' experience of an organization and organizational sanctions. These in turn provide us with three categories – coercion, when association is steered by constraint exercised by the organization; interest, when integration proceeds deliberately and voluntarily; and normative or institutional integration, when association is steered by a normative community. The starting point selected is important, and often decisive, for any effort to understand the connection between the individual and the organization. In the present effort to theoretically explain how a particular association between individual and organization emerges, I have deliberately selected human nature (the integrating unit) from the choice of two alternatives for the starting point. That is to say that the starting point for integration should be sought not in the organization, but in people. The reason for this decision is my contention that organizations have no organic form, and that they can be steered and influenced in a completely differently way than people. In order for the theoretical starting point to function as a explanatory factor, it should provide the location for an active element. I have chosen the individual's striving for development and maturity as the active element or integrating factor in this regard. The integration of individual and organization is fostered to the extent that the individual's striving for development is satisfied within the framework of the organization. I argue that participation is the principle of integration that serves this goal. In conclusion, participation promotes the integration of the individual and organization, and it drives the process of integration in respect to three forms of coordination – coercion, interest, and institutional integration. Submission (the absence of participation) leads to coercion. Negotiation (the preliminary stage of participation) leads to interest integration. Participation, finally, leads to institutional integration.