If time doesn't really exist

[anagogy]

So think of your future self as a path through a maze. It knows the specific route you are going to take because it is you in the future. The Higher Self portion of your future consciousness is like that same maze but the path through it has been erased. It is aware of all the paths through the maze, but is not aware of the one you will choose to go through it. Ra has said that the Higher Self is like a map in which the destination is known. However, it does not know what specific path you will take through that map to the destination. It just knows you will eventually reach the destination. It is, however, intimately aware of the paths through said maze, and can assist you in providing information in that regard.

Writing in response to this part of your post, anagogy-

So would you agree that the higher self must not infringe on our free-will by doing anything other than "guidance"?
For example: it would not push us toward the "exit", which we may or may not be aware of, or seeking.
Would I be correct in stating that the higher self only "chooses for you" when you have no 3rd density opportunity to do so yourself? In example: when you have passed away and take refuge in the other side; I suppose there, and only there the higher self adjusts limitations and predispositions if it wishes.

The higher self does not control or manipulate you in any fashion. There are some beings who have not activated their heart center to any degree whatsoever, and in those instances, the Higher Self chooses their lessons and incarnative circumstances for them. It is sort of like auto-pilot for souls who haven't yet awakened to their spiritual nature. However, once the heart chakra has been activated, all predisposing incarnative biases are collectively decided by the incarnating soul and the Higher Self together.

But then, what would be the reason for that? If I may suggest, perhaps it is for the lessons yet to learn or those we pick up from our past life to resume in our journey in this realm of free-will...

All predisposing limitations, or biases, that are selected prior to physical incarnation are for the purpose of accelerating spiritual growth. They are selected based on their potential for you to release the illusory distortions that prevent you from tapping into intelligent infinity.

It is, however, intimately aware of the paths through said maze, and can assist you in providing information in that regard.

I'm assuming the higher self, since it knows not the future of your path, can only tell you about what you've been through, not where you're headed...so it can't tell you what's ahead because you haven't chosen it yet. Though it can tell you...what you've been unaware of in your path? I'm not seeing much else it could say. Paradoxically, would it automatically tell you of what you were unaware of, thus infringing, or would you have to be aware of the desired info, thus not needing the information retold to you?

Even though the Higher Self does not know your future per se, it can see the momentum of your biases, and can see the probabilities associated with that. Keep in mind, most people do not communicate, consciously, with their Higher Selves during incarnation unless the appropriate channels are opened up in their consciousness. In a more basic sense, everybody is communicating with their Higher Self unconsciously, and this communication is translated by us as emotion. The Higher Self has a broader view than the incarnating personality, so it can see probabilities very clearly and help you follow those probabilities you desire.

It provides information based on the direction of what you desire. It does not provide information unsolicited, usually. It does not judge your desires. It just assists you in experiencing what you desire to experience. When your focus of thought is in opposition to how your Higher Self is looking at things, relative to that subject, you will feel negative emotion. When your focus of thought is in harmony with your broader Higher perspective, you will feel varying degrees of positive emotion. When you feel a visceral sense of well being, it means you are in the process of manifesting a desirable outcome. Your emotions allow you to sense your degree of harmony with your inner beingness, based on your focus of thought.

Is there a merge here, where the higher self becomes present in you, and you are simply...the higher self? Is it basically (according to my speculation) as Ra put it in session 70, answer 11?

The merge is just the natural progression of time. Your Higher Self is you in the future. It is the mid sixth density version of yourself that has turned towards itself in the past to assist it, giving it the very assistance it received when it was a 3rd density entity.