Hoopermation is a YouTuber who vlogs about video games, in particular the Oculus Rift. He had his dad try out the Apollo 11 simulation.

Space. The Final (virtual) Frontier. (via YouTube)
Space. The Final (virtual) Frontier. (via YouTube)

His dad had always wanted to go to space, so he thought it'd be a fun experiment. He was totally unprepared, however, when the headset induced a quasi-religious experience. His dad cries "tears of joy" throughout, and can't get over how awesome it is. He was probably experiencing a version of the "overview effect," which Wikipedia defines as the following:

The overview effect is a cognitive shift in awareness reported by some astronauts and cosmonauts during spaceflight, often while viewing the Earth from orbit or from the
lunar surface.

It refers to the experience of seeing firsthand the reality of the Earth in space, which is immediately understood to be a tiny, fragile ball of life, "hanging in the void", shielded and nourished by a paper-thin atmosphere. From space, astronauts claim, national boundaries vanish, the conflicts that divide people become less important, and the need to create a planetary society with the united will to protect this "pale blue dot" becomes both obvious and imperative.

Sources: YouTube