out of which

[arthurshen]

We come now to the next step in the description of the ways and
means by which one may gather, classify, and organize useful
knowledge, through the harmonious alliance of two or more minds,
out of which grows a Master Mind.

I have problem to interpret out of which grows a master mind,
can anyone please explain it to me?

[Temico]

How about if the sentence was re-written this way,
"We come now to the next step in the description of the ways and
means by which one may gather, classify, and organize useful
knowledge to grow a Master mind through the harmonious alliance of two or more minds."??

[Casiopea]

'which' refers back to 'the harmonious alliance', so try moving the phrase 'out of which', like this,

. . . out of the harmonious alliance of two or more minds grows a Master Mind.

In other words, a Master mind grows out of the harmonious alliance of two or more minds.

All the best,