What do you define as sentient?
I believe animals and plants come under this category, they begin and end life like we do and grow to mature, get old, die, also like us. I think this is also true of innate objects, rocks, water, earth and the sun, their life spans just overshadow ours somewhat, but they too will die.
On a theological note, if all creation extends from Allah, the Tao, Adonai, God... would not every aspect of creation have divinity?
I know a lot of older cultures extended the definition of sentience to encompass a variety of things. Japan is one such culture that still has a spiritual connection to trees, mountains and animals.
Love
“Among other things, you'll find that you're not the first person who was ever confused and frightened and even sickened by human behavior. You're by no means alone on that score, you'll be excited and stimulated to know. Many, many men have been just as troubled morally and spiritually as you are right now. Happily, some of them kept records of their troubles. You'll learn from them—if you want to. Just as someday, if you have something to offer, someone will learn something from you. It's a beautiful reciprocal arrangement. And it isn't education. It's history. It's poetry.” J.D. Salinger.