Why the incarnation?
God became man so that man might become God.
He demonstrated to humanity that the full image of God can be manifested in human bodies, by becoming one Himself.
He demonstrated that a Soul (any Soul) that gets its knowledge and identity only from Heaven, from inside to out, can have profound (miraculous) effects on creation, to the extent that the environment does what it is told, and even the body can be stopped from expiring.
God became man to correct our understanding of His nature. Humans, including His chosen people the Jews, had come to many erroneous beliefs about Him.
God became man to remind us of our purpose (to make Earth like Heaven - to create beauty in all it's forms) and God given authority over the earth.
God became man to "fulfil the law"; by way of fulfilling the prophecies in the torah, and deepening the interpretation of the law, shifting the focus from mere external rule-keeping to internal transformation of the heart. The law kills, but the Spirit gives life.
Killing / death means corruption, degeneration, sickness, fear, lack (of possessions to steward, and freedoms) and physical death.
God became man to free humanity from the captivity and imprisonment to these things.
Why the cross?
The cross is a hospital, not a court room.
The cross is not a place of punishment but the ultimate act of love, redemption, and union.
The cross didn't purchase your inclusion. It revealed it.
The salvation of the cross is like being rescued from drowning, not being let off from a so-called deserved retributive punishment.
Whilst Jesus did die for us, more importantly He died as us.
Jesus “won back” or “redeemed” part of creation (Earth, our Souls and Bodies) from Satan with that body.
Won back from Satan. We were “rightfully” Satan’s, albeit won through deception (our delusion), so only "rightful" in as far as anything stolen can be said to be owned by a thief and said "ownership" requires us to continue to believe it to be so, even when it isn’t.
However, Satan forfeit them back to God, by thinking he had engineered Jesus’ death.
Jesus (God the Word, being a human) had never taken an instruction from Satan and so wasn’t under his rule and so not his to kill.
Whilst Satan and humans influenced by him, didn’t actually take Jesus’ life (He gave it to them), they thought that’s what they were doing.
So it was, Satan’s will, and that broke the Heavenly rules of reigning over a given kingdom.
About 2000 years ago, Satan and his demons, lost their rule over us and creation because of Jesus’ death on a cross outside of Jerusalem in Isreal!
Our perceived separation from God was removed, for any human who looked His way.
We're not covered by His blood, we have His blood running through our veins as new creations.
We've been given His name, which is His authority to govern on His behalf on earth.
You inherit when someone else dies, not when you do.
Why "get" Baptised?
The baptism ceremony does not make you baptised into Christ; it commemorates that you are.
All of humanity was baptised (engulfed) into Christ, 2000 years ago.
Believer’s baptism helps remind you of this belief, and bears witness to your belief, so that others might also believe.
Are you born again?
You are; Nicodemus, when spoken to by Jesus, wasn't yet.
For Nicodemus, being born again was yet to come.
For us, it has happened whether we know it and act on it or not.
When Jesus said it is finished, he meant he had rebirthed all of humanity throughout time, He had torn the veil we'd put up between our souls and our spirits (are spirits are one with Him, that's how Christ is in us, but also the cosmos is in Christ).
When we believe and say we are born again, we are recognising this position, this new species we already were, not bringing it about or making it happen.
In the same way we had no part to play in our natural birth into this world, we didn't get a say in being born again of the spirit.
If you say you are born again, or when you were first born again, you are recognising when you realised and tapped into it, not when it happened.