Wanderers have to polarize?

[native]

I was able to find this. Note the underlined portions. Maybe it's not really necessary to interact with an "other" to polarize. At least not face to face.

All things have their place. Meditation is central and aids in polarization.

Notice that the quote you cited is in reference to an adept. An adept is one who will of necessity have needed the mirrors of others to work with all the lower rays for polarization to take place.

"The penetration of the veil may be seen to begin to have its roots in the gestation of green-ray activity, that all-compassionate love which demands no return. If this path is followed the higher energy centers shall be activated and crystallized until the adept is born. Within the adept is the potential for dismantling the veil to a greater or lesser extent that all may be seen again as one. The other-self is primary catalyst in this particular path to the piercing of the veil, if you would call it that."

"It is not well for positively polarized entities to work singly. The reasons for this are obvious."

"This catalyst then is shared between peoples as an important part of each self’s development as well as the experiences of the self in solitude and the synthesis of all experience through meditation. The quickest way to learn is to deal with other-selves. This is a much greater catalyst than dealing with the self. Dealing with the self without other-selves is akin to living without what you would call mirrors. Thus, the self cannot see the fruits of its beingness. Thus, each may aid each by reflection. This is also a primary reason for the weakening of the physical vehicle, as you call the physical complex."