I make no distinction between sacred "things" and secular "things." ALL "things" are finite and only God is infinite. I view God as the "SOURCE" of all THINGS! [That from which or from Whom all things come into being or are derived or obtained. See 1 Corinthians 3:21-23] And, I view all "things" as simply RESOURCES. [Something that is available for use or can be used as a help in making life a little better]
"Walking after the "things" of the flesh" [ a no-no] is simply using or seeing "things" as the SOURCE for making life worth living. It can be ANY thing. American citizenship, family, appearance, relationships, job, recreation, preaching, church attendance, bible reading, giving, you name it. When THESE THINGS are seen as the SOURCE for what makes life worth living they have become an idol. God isn't, Himself, seen as the SOURCE for life.
"Walking after the "things" of the Spirit" [a yes-yes] is simply using or seeing "things" as a RESOURCE for making life a little better, but, all the while, seeing God as the SOURCE of it all. It can be ANY thing. American citizenship, family, appearance, relationships, job, recreation, preaching, church attendance, bible reading, giving, you name it. When THESE THINGS are simply seen as a RESOURCE for making life a little better or more enjoyable they ARE NOT an idol. God is, Himself, seen as the SOURCE for life.
All finite "things" will pass away. Only Infinite God will not pass away. Nor shall we once our mortality [finite] has one day at the resurrection put on immortality. [Infinite]
So life ISN'T a list of WHAT to do or what NOT to do in terms of priorities. But it is experiencing and celebrating God in ALL OF LIFE and enjoying all the resources [the things mentioned above added to the things in 1 Corinthians 3:21-23] He has delivered to you in your particular realm of existence on planet earth. AND, it is being a RESOURCE yourself for others along the journey choosing to introducing them to your SOURCE with the gospel message when possible. [Christ IS after all, the answer for life.]
Paul B.