The means may be likened to a seed, the end to a tree,

and there is just the same inviolable connection between the means and the end as there is between the seed and the tree.

Mahatma Gandhi

That's a big vision ...

... a world where all people feel safe. In Gandhi's words, the "tree". 

What then is the "seed"? Where does one even begin to start?

I believe it starts with individuals.
By creating environments and circumstances
where people can feel safe, in themselves, in their being ...