What a thoughtful, incisive, enriching post.

I think that the truth - however we are given to understand it - is crucial to living a productive life.  While cultural norms may be unaccepting of the richness, diversity of the human experience, it's important to realize that cultural norms have little, if anything, to do with truth.  These norms exist for cultural reasons (more babies, more cannon-fodder) for all the negative things we're pressed to accept.  Fomenting hatreds against "the other", self-interest (religion), temporal power (wars), is something that human beings have been fooled into accepting for millennia.

While I know nothing about numerology, it is interesting potential facet of our lives.  What it isn't, however, is a controlling facet of our lives.  I believe that what controls our lives is our honesty about ourselves.  It's tough to live a lie, once we become aware of the choices we can make. 

"there was once a version of me who could never have imagined I would become what I am now" - which applies to uncountable numbers of we human beings.  I too could have made that statement, and it would be utterly true.  The fact is though, that "version" would have been far less productive than the "true" version of who and what I am.  Each of us have choices to make, and those of us who choose to follow our own personal "truth" are - in my estimation - the lucky ones. 

"My former Master took a latent instinct and forced me to confront and accept that it was my true nature."  I think your former Master recognized your value, your ability for reflection, your intelligence, and most crucially, your instinct to become an honest man.  I think he did the world a lovely favor.  More, I think he did you (and the world) an immeasurable favor, not to mention the value of accepting your truth.  He gave you a magnificent gift.  He knew that mating with you would be enriching not only for your truth, but enriching for every man that mated with you.

"Yes, there’s a sense of humiliation I feel".  Humiliation is nothing more than a tool the unfulfilled use in defense of their own inability to face truth.  You need not accept cultural humiliations, rather you can feel triumphant in the fact that you have accomplished (thanks to your former Master) what those who would denigrate you have obviously not.  Take those humiliating comments for what they are:  inverse compliments.  You're the one with the courage to become the man you were born to be.  Those to try to humiliate others, clearly have their own issues to resolve.  

"Could I have simply turned left instead of right at some point and never become this at all?"  Of course you could have.  Choosing that path would have placed you among the millions upon millions of fearful human beings that were unable to be true to themselves.  That would have denied you the fulfillment of becoming the man you were born to be.  That would have limited your ability to become Whole, and that would have been a tragedy.  You have no idea how many lives you have made richer by sharing your thoughts, perceptions, questions, answers.  Of course you mated with your peers - your Brothers - again.  You're free of the constraints that cripple so many.  You know yourself, you know your instincts, and you fulfill them.  In short, you're an honest, truthful, complete and magnificent Man.  Does anything else really matter more?

(sometimes, it's all about more than) Cock/Hole/Sperm