Also, "be" is not necessarily a state of passivity. It can be an active process of determining what your goals and life-quality factors, and of carving out space in the world for them. That your self can be an ideal, rather than a default.
Of course life is fundamentally about eating other life, except for bacteria that eat rocks. So there could be an adversarial element to it
Totally off topic, but plants and fungi don't eat other life. Plants make their own food using waste products from animals. Fungi use dead and decaying matter for food.
Even more off topic, the only reason I feel the need to comment is my kid is prepping for a Singapore Science test and they seem to have a lot of questions about this stuff.
Of course life is fundamentally about eating other life, except for bacteria that eat rocks. So there could be an adversarial element to it