The ground floor
"Then all the congregation answered and said with a loud voice, As thou hast said, so must we do. But the people are many, and it is a time of much rain, and we are not able to stand without, neither is this a work of one day or two: for we are many that have transgressed in this thing." (Ezra 10:12-13)
Spoiler alert. You won't find anything about Chemistry herein. I have merely appropriated the concept as identified under those letters and these constants.
The Law of Mass Action, chemically speaking, says that the strength of a reaction is proportionate to the density of the reaction-causing substance. Okay, so there's a little chemistry for you. But extrapolate it out at large. How big is the world in which we find ourselves? How varied, wondrous, mind-boggling and deep? How overwhelming? When you extend your gaze out to the world as it is today, do you still hold God in the esteem you did before you directed your attention elsewhere? Because He's there. He's actually looking through you. What do you think about the world He made? Are you able to take in all information and remain childlike? Is it because it's possible or is it because you choose to? And how broad and deep is your curiosity?
Proving ground
"That Christ may dwell in your hearts by faith; that ye, being rooted and grounded in love, May be able to comprehend with all saints what is the breadth, and length, and depth, and height; And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God." (Ephesians 3:17-19)
" And they that use this world, as not abusing it: for the fashion of this world passeth away." (1 Corinthians 7:31)
The wonder of our world is meant to direct our hearts to God. It really is simple as that. It's true. Beautiful though it may be, the world is in a sorry and fragile state. And I hate to sound naive, but I'm actually more concerned with the heart-condition of those who "name the name of Christ", i.e. Christians. Because if we have the audacity to say "the living God, which made Heaven and earth, and the sea, and all things that are therein:" (Acts 14:15), are we going to back it up with a heart that's resonant with His? I'm quite fed up with proving points by looking to the natural world. It wasn't the world that was made in His image, it's us. We're the ones who are meant to show the veracity of God as revealed through our natural substance. The love, generosity and intensity that God is, is supposed to shine through us to reach the world and turn its head--and turn it on its head.
"Thou sendest forth thy spirit, they are created: and Thou renewest the face of the earth." (Psalm 104:30)
Holy ground
Because Jesus did what He did, effectively showing us what it means to be human in the world, the ground we walk on is indeed holy (it's only because of Him). The passage at the top of the page refers to Israelites who were not allowed to re-enter Jerusalem (after its rebuilding, see Nehemiah) because they had "taken strange wives" (Ezra 10:10). While that was a no-no under the Old Covenant, it doesn't apply now. It's not an issue anymore. What is an issue, however, is the en masse complacency and apathy in Christians with reference, not to the state of the natural world, but that of the spiritual. And I'm loath to interpret everything from the Old Testament in light of pure symbolism, but when it says "it is a time of much rain, and we are not able to stand without", it essentially means that we (we) are looking at the state of things the world over (physically, financially, materially) and telling God it's too hard. "Behold, I am the Lord, the God of all flesh: is there any thing too hard for me?" (Jeremiah 32:27)
God wants to change the world through His kids. Let's let Him. Passionately pursue the things that God's put on your heart. Don't let anything or anyone tell you not to take that next step, whatever it may be.
"Who laid the foundations of the earth, that it should not be removed for ever." (Psalm 104:5)