In The Kingdom of Speech Tom Wolfe describes a small population deep in the Amazon whose language has no future tense.
The Pirahã lived entirely in the present, spoke only in the present tense, did not analyze their past or agonize over their future—which in no small part accounted for their generally amiable, relaxed, laugh-light demeanor. For the same reason, they spent virtually no time making artifacts, not even the simplest. Artifacts are an elementary part of thinking about the future
In a way, these people remind me of Buddhist monks. They seek that place beyond language. They seek to be here now.
The Pirahã sound like some of the descriptions I have read of the enlightened ones.