I think you misunderstood the role of individual intention and self-knowledge in how one creates the life one wants. It means that first you have to know who you are and what is important to you. What is worth having and worth striving for, not simply wanting what media and popular trends tell you is a good life. That process of reflection and self-enquiry into your true nature and value is not something that an external God gives to you, it is what your inner divinity reveals to itself.  That ongoing process of awakening is the life that your soul truly wants. The path of manifestation of a good life is ultimately about finding spiritual fulfillment and having material needs and comforts organizing around that spiritual core as necessary, not vice versa.