"For both He that sanctifieth and they who are sanctified are are all of one: for which cause He is not ashamed to call them brethren." (Hebrews 2:11)
That end of the spectrum ('infra-' means 'below') we cannot see. While Jesus did what He did for us, it should be understood that He was the only person who was even able to. The only human being who, through the six-thousand plus year tenure of humanity, had the ability to live the sinless life. The strict and strident and stringent qualification for resurrection. His Father may have turned His back on His Son but after three days, the debt was paid in full. Jesus' blood spilled out was the perfect offering in exchange for the once-and-for-all eradication of the sin problem.
And so, panning out to the rest of the spectrum, we see that because Jesus was human like us, and also God, it is now possible for us to return to the source of our existence. The circuit is now complete.
"And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely." (Revelation 22:18) I like the King James but the male 'him' pronoun refers to all of humanity. Paul says to the Galatians (3:28b) "there is neither male nor female in Christ Jesus." That's the idea. Jesus loves and touches us on a level deeper than our gender, than our humanity. He touches on a level that only He and I have access to, in that order.
As an aside, the color purple represents royalty. Oh, don't kid yourself. You can like it (or not) for any number of reasons that may or may not correspond with that interpretation but look at the robes of royalty the world over. You'll see a correlation. And as Jesus is the "King of kings" (Revelation 19:16), He alone has the power and ability to bestow upon us something befitting His "brethren", His sisters. Namely, the title "children of God". And so, rewinding back to the first part of this, anyone who sees and considers and accepts the things that Jesus has done and provided for us now bears this title. This is part and parcel of the Gospel. It's been bandied about and translated and reworded the world over in as many languages as possible. But it's the same old story. The difference between It and your garden-variety myths and legends and fables is that it's imbued with the supernatural power of the Holy Spirit who makes it real and alive in the heart of any woman and any man who believes.
Wisdom speaks: "The Lord possessed me in the beginning of His way, before His works of old. I was set up from everlasting, from the beginning, or ever the earth was...Then I was by Him, as one brought up with Him: and I was daily His delight, rejoicing always before Him; Rejoicing in the habitable part of His earth; and my delights were with the sons of men. Now therefore hearken unto me, O ye children: for blessed are they that keep my ways." (Proverbs 8:22-23, 30-32)
I was told growing up that this is the Holy Spirit speaking. I believed it and then I can't say I doubted later on but that I then felt nothing either way. For something to take root in you, you have to make it your own. Suffering helps, I should say. Then one day the passage came back to me. The structure around which things grow and form and blossom has been with us forever. The Holy Spirit is that structure (you can say "She", just don't say "It"). We just didn't have access to Him until Jesus made it possible. Until He was broken open allowing the Spirit to escape back into the world on our behalf. All of this is perfectly in concert with free will, by the way. It's when you consciously choose to walk with God that your will becomes His and another circuit has been completed. Your life in exchange for His. This is what it means to be a son or daughter of God.
"For as many as are led by the Spirit of God, they are the sons (and daughters) of God. The Spirit itself (Himself!) beareth witness with our spirit, that we are the children of God:" (Romans 8:14, 16)
Let there be light.