The author of the article has a Ph.D. in psychology and the journal is named "Seeds of Science." To a seasoned traveler in life, these are both red flags (real science journals don't need to proclaim their relationship with science, and psychology isn't a science as the term is defined).

As I expected, the article fails to address its title in a systematic, constructive or scientific way, by for example defining what happiness is or establishing whether it can be reliably measured.

I imagine writing a substitute article that rings the same bells. Mine would begin, "I hope you didn't come here expecting a meaningful answer to this classic among unanswerable questions. Now enjoy my overly long, folksy narrative that only pretends to address its topic."