Something that someone says that, on the surface, sounds deep, but under the surface is shallow and superficial.

A portmanteau of profundity and blather. It sounds like wisdom but is really just empty nonsense.
Examples of profundiblahs:
"We can only understand the universe when the universe is understanding us."
"God, Himself, is in the act of knowing, so to know God is to be God knowing God."
"When we hurt, it's because we have allowed the other to harm our vulnerabilities."
by Abierto Pudenda January 29, 2021
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