If anyone is familiar with Genesis in the Bible there's this enigmatic passage about the formation of "days"... God says "let there be light" calling the light "day" and the dark, "night"... saying there was an "evening an a morning of the 1st day"... what's interesting in this story is that God doesn't make the sun until the 4th day! THIS-is why the Bible is so interesting. What governs the day from the night if not the sun? Now there's debate about the reality of this creation story depending who you talk to but if you step back from the theology and look in to it for its wisdom, you'll find subtle explanations of of practical ideas. Whomever you believe wrote this, is saying that the idea of life is so much more elevated in creation than the backdrop of this environment because the design of time and days was created for that which experiences it and not a product of an aspect of creation. Meaning, the sun and moon and stars as massive and as important to biology as they are, were not made to be co shareholders in creation but instead backdrops to our creation to be useful for our lives. When people talk about the sanctity of life, part of the motivation of that idea comes from a basic philosophical understanding that "nothing matters if not for a being with self awareness experiences it" it's for that reason that many environmentalists demand personhood to animals and natural objects. Because though they are trying to avoid this simple fact that nothing matters without humanity they know everything is measured by "human value"... the creation of "days" before the creation of the sun is a nothing short of a value statement about you.