as I recall events.... I found myself as a child in a world where adults pushed me around to places I had no choice but to go, like school, church and anything else they decided to do.... I found myself low man in a heirachy of people... parents, police governors, presidents, etc.
I found, as I grew older that a lot of it made no sense in any overall way and that is where a void existed for me.... I was curious and inquisative and had a desire to find out how things worked and why they were as they were.... and the more I learned, the more I realized that many answers given to me as a child were only "theory" or dogmatic assercions without a shred of evidence to support them...
Then came JWs... they seemed to have a rational world view which claimed to make everything understandable. They made the incomprehensible bible stories suddenly meaningful and useful in every day life.... the brought a sense of order and rationality to the chaotic world I was trying to figure out.... they did not answer hard questions with "this is what the church teaches", as the catholics had... but attempted to give some sort of rational grounding to their beliefs.....
it took many years for me to realize that their castle in the sky was also built upon the same fantasy foundations that others had built upon... what seemed rational for a long time began to look more and more suspicious... what they claimed to be founded in FACT was more and more seen as founded in dogma which no one could verify, just like all the other BS [belief systems].
and due to skillful use of ancient hypnotic induction techniques [which they claim are forbidden by the bible {binding with a spell} and they would NEVER use], they kept me from seeing many of these flaws for quite some time.
so there you have it, the void that drew me into JWs was a void of understanding, which I am happy to say still exists but is now something I embrace rather than despise.