St. Seraphim of Sarov, the last Saint canonized in Russia before the Revolution, said "Save yourself, and a THOUSAND people around you will be saved."
This is the same idea as "light one candle rather than curse the darkness."
That "candle" is within yourself. "Cursing the darkness" is like point a finger at the world, at Sodom and Gomorreah, a wagging finger, and saying "Look how dark the world is!"
If we do too much finger waging at the darkness of the world, sometimes we never get around to lighting that one candle that is within us.
And surely that one candle has something to do with love.
I'm thinking of St. Paul's beautiful words about how little worth all the rest of spiritual endeavors has if love is absent.
Besides, you can't sweep the sea back with a broom. But with a broom you can clean your own house .
I am thinking about the verse from the Rubaiyat of Omar Kayam , from the section "Being and Nothingness":
The movinger writes; and having writ, moves on;
nor all thy piety nor wit shall lure it back to cancel half a line
nor all thy tears wash out half a word of it.
The moving finger is our free-will choices, unfolding in the matrix of TIME.
There is a sort of "karma" written by those actions, which is like the "finger of God" writing upon the wall: "Mene Mene Tekel Upharsin" which Prophet Daniel interpreted as "You have been weighed, and found wanting."
How the imagery of scales and weighing haunts us in the scrpitures of World Religions!