Thank you for your question.
My interpretation is that the use of "beyond" is
for a poetic effect. This is the best way I know how
to describe it.
Imagine a box;
[xxxxxx] (your life)
now, imagine a tangent that touches part of the outside
edge of that box:
The same way a tangent might touch a curve.
"Your life" is everything in that box:
experiences, acquaintances, family, ideas, thoughts;
that are part of your life.
Now, anything on the other side of that tangent is
"beyond" your life. That is, it exceeds what
your life contains. So it is beyond you.
A word of caution: "Beyond" can also mean
after death, but I don't think that applies
here, and that is an explanation for another day.
I hope that helps.