@js290 Well, not really. We're not personifying ancient people because they are people. We're not giving them person-like traits they didn't actually have because they were human beings like us, and undoubtedly led as rich and interesting lives as any other human being does today.
It is true that we don't fully understand many ancient peoples. We don't know why they did certain things, and the whens of particular historical events can get exceedingly muddy the further back you go. All we can do is make an educated guess based on what evidence we do find.
Bringing it back to Ancient Canaanite religion- there isn't an awful lot known about it. The ancient Canaanites seem to have taken papyrus paper from their Egyptian neighbors as their preferred writing medium and most of the contemporary writings to those eras are lost or remain as of yet undiscovered.
Most of what we do know is traced back through the surviving children of the Canaanites- Jewish and Samaritan histories and religious texts, which are perhaps not the most honest of historical sources, and from cuneiform tablets found in Ugarit.
The rest is pieced together from later Greek sources.
That being said, there is a lot more about ancient human societies and cultures that we don't know than we do. We're making our best guess based on those shreds of evidence that have survived (sometimes) thousands of years.
It's a puzzle we'll likely never fully solve.