Notice here that Jesus says that you CAN use meditation as a way to go ALL the way to atonement. Without a holy relationship. But that a holy relationship is perhaps "more efficient" because it provides a learning environment in which both can benefit quickly.
"Nor is a lifetime of contemplation, and long periods of meditation aimed at DETACHMENT from the body necessary. ***All such attempts will ultimately succeed***, because of their purpose. But the ***means*** are tedious and very time consuming, for all of them LOOK TO THE FUTURE for release from a state of present unworthiness and inadequacy.
Your way will be different. ***NOT in purpose***, but in means. ***A HOLY RELATIONSHIP IS A MEANS*** OF SAVING TIME. One instant spent TOGETHER restores the universe to BOTH of you."
So a holy relationship is a way to SAVE TIME, compared to other pathways to God, but it is not the only way, or a required way. You can get there solely through meditation/contemplation as well. You can get there in a cave, or you can get there in a crowd. It doesn't matter.
PURPOSE is what's important. "because of their purpose" ..... if meditation is used for the PURPOSE of reaching God then it will succeed. If a special relationship is used for a PURPOSE of reaching God (ie a holy relationship) it will succeed. If the WORLD or the BODY are used for a purpose of reaching God, they will succeed.
It's always about the repurposing of what the ego made, which covers not just relationships but also the world and the body and perception and time and space and illusions. The whole thing is a MEANS for getting you home. And all such approaches CAN work.
A Holy Relationship can save time because it can be kind of a crash course, an intensive, a cooperative mirroring scenario in which two people are striving for the same purpose/intention, and so can help each other and support each other. That can work more effectively than "going it alone". But going it alone also can work.
Everyone's path is different and a holy relationship is not REQUIRED as such. But IF you are having relationships (special ones), converting them into holy relationships will be beneficial for achieving the goal. And they are nothing more than a MEANS to an end, not an end in themselves.
Jesus also talks about how some people realize the truth on their death bed, alone. Some realize it through many other paths. Some realize it through doing the lessons and the course. All of it is valid. Every repurposing of ANY aspect of the world is a way to go home. Any re-use or reinterpretation of ANY aspect of "life" here is a way to go home, because it moves you closer to true perception. Relationships with our brothers etc is just one part of that, one example of that.
It may be true that in the atonement plan, some individuals have chosen/agreed to meet due to having the potential for a holy relationship. And it may be that many "pairs" (or more) may come together in the final stages of awakening to wake up together. Which is a beautiful thing. But not an exclusive thing, or a mandated thing. Anyone, no matter their relationships, can always return to God.
The requirements for ascension is only your sole responsibility to accept atonement for yourself. How you GET THERE, is up to you. Whether through relationship transformations or teaching or writing or meditation or strange yogic practices or religion or whatever. Many will get there without ever running into the term "holy relationship" or having a clue what one is. The curriculums are individualized.
Using your relationships as a hotbed for awakening and practicing forgiveness is always a good thing. But ultimately forgiveness is the forgiveness of THE WHOLE UNIVERSE, not just select people, or objects, or pets, or certain bodies, etc. Your entire perspective on this realm has to be transformed. Your entire relationship to the planet, to the galaxy, has to change. Your relationship to time and space has to change. Your mind has to become whole and the entire world has to become "the forgiven world" to you. That is beyond the scope of just your relationships with other people, although they are INCLUDED in it.
Whatever way works for you, whatever is in your curriculum, whatever path you've chosen or lessons you've agreed to undertake, and whatever form that happens in, be it through your intimate relationships or strangers or not even involving other people at all, it's all good and it's all moving you closer to God. Because the only thing stopping you from going home is your willingness to do so. And nothing can hold you in the dream against your will. There is no requirement for entry to heaven other than to get your mind straightened out so that you can accept the Kingdom without reservation.