yeah i don't know, i was just making stuff up lol. hadn't read it before

Don't pay attention to this!
i spose that if the black boy is helping the white bear god's heat (love) when they both reach god's presence, then he's saying that white people have moved away from God. you could take that as secularism, the enlightenment and reason, theology vs. faith, simple inhumanity to other men (eg, slavery) etc.
He loves his white children, but not his black ones apparently.
For when our souls have learn'd the heat to bear,
The cloud will vanish; we shall hear his voice,
…
And thus I say to little English boy,
...
I'll shade him from the heat, till he can bear
To lean in joy upon our father's knee;As for God's reaction to this, the status of black people at the time is closer to that of early christians; persecuted. So God is letting his children suffer and persecute each other. I think this indifferent/non-benevolent God is present in the book of Job. The boy's belief in a benevolent God might seem naïve, but there's scriptural, if not rational, basis for thinking that the God can love and cause to suffer.
And then I'll stand and stroke his silver hair, (God's hair)
And be like him, and he will then love me.