so in the ancient poem (ch 47) the silver tree is personified as a maiden who gains magical powers by being blessed by a star and who then out of her goodness of her heart shares the blessing with humanity. this is the gift of magic ink from the tree . its interesting that the only thing you need to cast magic is the ink , you can practically draw on anything with anything but if the ink isnt magic ink from that silvertree you got no magic, just a drawing.
In ch 5 qifrey equates the trees sap to its blood.. this sort of humanization of the tree like in the poem makes me think maybe theres actually smth to the tree being more human than we think?
my two other leads are that adding human blood to the magic ink (tree blood) makes it much more potent its like ,, more bloods per ink makes it more powerful..
and lastly the brimhats seem to have this big expirement going on next to their goal of liberating magic thats about fusing the silvertree with a human ,,to create what? my first idea was the perfect fusion and thus preservation of both tree and human in one being but that makes no sense as lestiss literally already has innia, she seems to be almost enitrely tree while still retaining her sense of self? shes as close as they can get to the tree taking over but the human still being there,,, and just making the trees sprout is also not their goal. he also mentions there being a recipient for the seeds ininia has? dunno if this is about fostering the seeds in humans in the proper way and delivering them to someone or having that someone being fused properly with the seeds and they first have to figure out to reach that state, whatever that my be.
thinking about that more im gonna throw some random guess out and say they might want to revive the maiden of the silver tree as the original witch? she shared her blessing and thus divided it , by reviving her they would create the most powerful magic being of sort ? so that could be taken as the absolute liberation of magic,,, dunno how human and tree fusing can aid in the revival of her and what role that recipient could play in this revival but this is just some guessing as to what the brimhats are up to