I could be wrong, but this doesn't sound like the netherworld.
I agree in part, however I would bring up
2 Corinthians 6:14
Swap "unbelievers" for "spirits residing in netherworld" I see no reason to expend time in such a world when the Bible doesn't mention interacting with this world as a point of importance to us in our lives here.
Yes, you're right, it's not the netherworld. That scripture in 2 Corinthians 6:14 doesn't have anything to do with that of which we speak. That's talking about being married. Try not swapping it, adding to it, taking away from it...consider the Hebrews 10 scripture again and don't be distracted and you'll see that it is talking about it.
Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus,.../
Now does that say after the day of the Lord? No, it doesn't. It says to get bold and go enter into the holiest...How is this done?...(This is done in spirit, not in the flesh...)
By a new and living way, which he hath consecrated for us, through the veil,.../
A new and living way? In the Spirit. For the Spirit is life. Scripture keeps pounding it into us...in the Spirit, In the Spirit, In the Spirit...we're to be led of the Spirit, We're to worship Him in Spirit and in truth, and we go to visit Him in Spirit (He has consecrated this way for us, to be able to go...through the veil...
Everyone waits on God I've noticed. This is good in a way, but remember...God did come to us, in the flesh and layed down His life for us. He said He goes to sit on the right hand of the Father, and to prepare a place for us, and that He will send back a comforter (Holy Spirit) for us. Believe it or not...now, God waits on US. The ball is in our court now. What's He waiting for?
He told us; to seek Him out, to knock on His door, and He promised us that if we do that we will find Him. It shall be opened unto us. There was no exceptions or disclaimers in that passage. It's not, after the day of the Lord, not after judgement day...so what then? It's now. Daily.
The only veil left now is the veil of unbelief that's over our own hearts. Ask for it. Seek it. Knock on His door. Strip off the veil.
2 Corinthians 3:15-16
15 But even unto this day, when Moses is read, the vail is upon their heart.
16 Nevertheless when it shall turn to the Lord, the vail shall be taken away.../
I could go on and on but for brevity will close for now with this. Be led of the Spirit. Every day. Moment by moment.
17 Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.