Hmm, just out of curiousity...
If there is such a thing as fate/destiny/predestination, why would your life become more significant? That is to say, if you are predestined, are you not also predestined to have a child (or not) and continue on the predestination path? Why does this imply significance?
I would be load bearing for the other events I kick start by my existance and that would make me more significant than if destiny don't exist. If destiny don't exist if things can be random - my presence wouldn't be essential. I could exist or not and trigger various events but I wouldn't be missing in the programming because as such doesn't exist.
You share far less dependencies that say, the stars, the moon, the earth... all of which would be equally predestined...
But isn't it only our limited perception of life which makes us assume that? If all things are preprogrammed, then all things, all beings, big/tiny etc. would have an equal value because all events would be dependant on each other and be a part of that program - in that picture, the movement of a tiny stone falling to the ground would have just as much significance as the moon - simply because it is part of the line/lines of events.
In theory, we don't know if a small seemingly insignificant event on earth, in the big picture, perhaps triggers more events than the sun, moon and stars. With our limited perception and the nature laws we live under - we only perceive it that way. Could be that in a higher dimension, an existant/non existant being living under other nature laws, would be able to perceive it differently. Similar to respectively my cats limited perception of a visit to a vet and mine.
My cats perception: Park, cat carrier, car drive, injection needle, vet = insignificant (but mean).
My perception: Infectious diseases, protection = significant (and good).
Edited to add:
In theory, we don't know if a small seemingly insignificant event on earth, in the big picture, perhaps triggers more events than the sun, moon and stars.
Doesn't the word *chaos* just describe everything which we don't understand?