hedonism, heathenism

Hedonism or hedonism means an interest in only pleasure or comfort; a devotion to pleasure as a philosophical good  --
His only religion is hedonism; he works at enjoying himself as if it were a duty.
The food is plain and not very good; she thinks good cooking smacks of hedonism.

Heathenism or heathenism means the worship of multiple gods, or nature as a god --
The more narrow-minded Christians still believe that anything that isn't Christianity is heathenism.
The minister discouraged the love of nature; to him it seemed like heathenism.

Now that you know that, you can say --
"The old man calls their gourmet cooking hedonism, and their love of travel heathenism; the worship of nature in place of the God of the Bible."