The phrase "initial aim" refers to the first goal or objective someone sets when starting a task or project. It is the target they want to achieve at the beginning before moving on to other objectives. Full definition
God is creator in the sense of continually providing initial aims for new actual entities. (religion-online.org)
Religion seeks to enhance the role of ethical aspiration embodied in initial aims by concentrating upon their source in God. (religion-online.org)
In this sense God is the principle of concretion; namely he is that actual entity from which each temporal concrescence receives that initial aim from which its self - causation starts. (religion-online.org)