California Cannabis Ministry, an individual spiritual journey

What is the California Cannabis Ministry? What conveys spiritual meaning and significance to an individual ministry? What's the point of an individual "ministry" as compared to a group church, an established religion or any other form of group worship? Is there a legal distinction between the rights of a group and the rights of an individual? What does "substantive due process" and "strict scrutiny" have to do with the legitimacy of any legal challenge to prohibition laws and how is that tied in with the First Amendment?