Did Ra address the reason for our existence?

[Ohr Ein Sof]

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I remember it being suggested that before the veil and polarity there was little reason to seek the creator and greater understanding.

Yes! When one knows they are light and knows they are love and is in union with The Creator, why would they seek anything more? Is there anymore to seek from that perspective?
Ra does speak of the Matrix of the Spirit being "less motile" and does not have the characteristics of dynamic motion.

The Matrix of the Spirit is difficult to characterize since the nature of spirit is less motile. The energies and movements of the spirit are, by far, the most profound, yet, having more close association with time/space, do not have the characteristics of dynamic motion

Also, there is a quality of depth that can be ascertained in third density thus adding to the Creator's knowledge of itself by our mere movement through third density.
Ra speaks of this great dynamic tension that is created when this is played out.

Ra: I am Ra. We would only comment briefly. It is generally correct. You may fruitfully view each Logos and its design as the Creator experiencing Itself. The seed concept of the significator being a complex introduces two things: firstly, the Creator against Creator in one sub-Logos in what you may call dynamic tension; secondly, the concept of free will, once having been made fuller by its extension into the sub-Logoi known as mind/body/spirit complexes, creates and re-creates and continues to create as a function of its very nature.

Moving around in the darkness has its benefitial uses...I guess one could say.