Replying to What does sending vibes mean/do?

I friend posted this earlier

"Provoking topic of the day:

In a time of sorrow why do people feel compelled to say, "Thinking of you..." What good does thinking about someone do? It's useless. You can't telepathically make anyone feel better. It's a secularized version of prayer.

It seems to me there are two options: Either God is real, loving and interacts with us - in which case we should pray. Or, God is not real, loving or does not interact with us - in which case we should do something tangible, since merely nice thoughts accomplish nothing.
The luke-warm middle ground here makes no sense."

Maybe it is because I don't know what it fully means, but I kinda of feel the same way about people saying sending vibes. So, what do you think, what does sending vibes mean, and what does it do?