Cause and effect relationships carry with themselves temporal sequences. If that which is caused needs a cause, and If all things in the physical universe are caused, and If that which is caused cannot cause itself, then The cause of the physical universe must be outside of the physical universe. Each of us human beings is, in the common use of the word, an individual, a unique member of a class of physical things referred to as human beings. As Dr. Adler points out, we use proper nouns and addendum descriptions to easily, unambiguously identify individual members of this class. No, since two different people could have the same name.
Identical twins look the same but they are different individuals.
So as not to belabor the point, let me cut to the conclusion of this line of reasoning and give one ultimate, definitive example. Every molecule, atom, and sub-atomic particle, etc. being an exact duplicate of you in your present form. Your duplicate may even speak and act like you and, of course, would look identical to you in every way because as we said we have made it an exact physical duplicate of you. Since I doubt that you would consent to allowing me to kill you, I will assume that you believe the latter. Then it follows that our individuality includes a necessary component that is beyond our physical make up, because an exact physical duplicate is still not you.