Board Thread:Theories and Speculation/@comment-33005792-20170901151707/@comment-734582-20170904155302

Okiko Hatake wrote: There must be a limitation to receiving them. I don't think seals can multiply. And while a god could in theory provide endless seals, the fact that we only have seen a handful of Kara and a handful of seals suggests that the supply will be limited.

I mean, these seals seem to be some sort of divine favor, and what would be the point of such favor if everyone had it? The Otsutsuki themselves seem to go to great lengths to evenly divide power (since they could easily obtain permanent power by eating in stead of processing the fruits), so they're an unlikely source of seals. And Kaguya was terribly afraid of splitting her power, so she would too be an unlikely supply of endless seals.