When will the Quarantine of Earth be lifted ?

[unir 1]

Higher-density positively-oriented entities will N.O.T. make overt contact until humanity has reached a sufficient degree of spiritual maturity and self-responsibility...

I believe we are the biggest stopping block to disclosure. The more we ask 'how can this happen?' as opposed to 'why can't this happen?', the quicker we find the natural solutions to things. We have to intend for it to happen first; then we find our way.

Why do you want to be boosted and helped by external source?

If we reach spiritual maturity, the only reason I see that there would be a contact is to meld our social memory complexes together, or something like that, for both races to further their refinement of self. As of now that possibility seems distant, because our entire race is not in harmony. To achieve planetary harmony, I reckon we start with our own self first.

If there is any truth to these stories of underground populations (Agartha, Shambhalla, etc.) that were sundered from the surface population during a cataclysm, a reunion would provide for a sort of "contact" without breaking quarantine.

I think for their sort of contact to occur, which has had as much an opportunity to occur in any point at the past (unless they really have been unable to emerge from the sub-terrain), they would have to be careful with what they plan to do.
Consider...that if they are planning to reveal something that would "shift our paradigm", there are those in power who would not allow this to happen- not a conspiracy theory, I mean there are literally people who would prefer to live the way the system currently works, where one suffers while another benefits out of that suffering, rather than living in something like world peace.
Hypothetically, they might be waiting for us to prevent the conflict ourselves through our own development; through spiritual development, we might see the falling-off of the current system. [Or, they may not be waiting, and may not even exist.]
I didn't and don't want to make any suggestions to anybody who is desperately waiting for a "grand-shift". I can only wish somebody doesn't go infiltrating "bad-guy" schemes just so they can hurry up this very hypothetical situation.