when does life begin?

When does the life begin?
This big debate
Forgets to take into account
The unbroken continuity of a life force
From parents to off springs
Through sperms and eggs
Or otherwise

Like small rivulets coming out of a river
Either making it to the ocean
Or dying in the desert
Life propagates
Often in the process
Becoming the food to sustain other living beings
Like cauliflowers and carrots
Crabs and even cows

Or just passes into oblivion
Like millions of sperms
Millions of pollens
Millions of pine or mushroom spores

Out of those millions
A few make it
Like the acorn
That does fall in the forest
But not on a drive way
And joins the relay race of life
To pass the gene to the progeny.