lamp and light

What do you call the thing with no name
what do you call this idea that struck
this sadness that doesn't unite but divides
friendship or otherwise an impossible love
the thing that was running toward you but was separation
still the most important thing but it goes on past you
any old unpleasantness like a cold spasm in the chest
this terrible emptiness that borders on God

the fact that if you don't know where to go
the path itself will lead you - J. Twardowski, What do you call it