stray thoughts

i've been thinking a lot this past week about what makes individuals spiritually connected. most of you have probably heard me talking here or there about my spiritual twin... and that's one example of a person that i have found that is almost exactly like me... we are similar in the way that we talk, act and understand concepts/situations. (i use the world similar.. we're not EXACTLY the same, eheh)... but this phenomenon.... that is, finding a person that is similar to you, and who you can actually trust (the people most similar to us are the ones that know us best - and know vulnerabilities best as well!) is not uncommon.
when you do find that person..or people as the case may be, you might forge some sort of connection. and my question is just that: what makes people connected... so with your ST (or kindred spirit, as some might call it), what makes that person your twin?
see, we can all relate to each other to varying degrees. that's easy enough since empathy is a pretty fundamental emotion - even if modern day western society is working to destroy it! but what increases or decreases the degree to which we relate to each other? and is it possible to create those points of connection artificially? (so is it possible to make yourself relate to someone else?)
i'll write some more thoughts at a less ungodly hour of the morning!