His big idea was that all of human culture is created in response to our persistent fear of death. Due to our ability to think conceptually, we have become the only animal that is self-conscious enough to be fully aware that it ends. As such, we live to defy this destiny.
Since we cannot read the minds of other entities, it’s hard to be sure. I for one have long lost my bias that humans are somehow “more” than those we refer to as “animals”