The mantra seems to match each kids storyline and personality trait.
Lochlan is observant and learning, but he seems torn between his siblings worldviews and hasnt found his voice.
How Would This Predict Their Fate?

Naturally, the viewers who agreed with this analogy also thought this symbolism would predict their fate.
I think it [symbolizes] their individual weak points that will catalyze their downfalls,one user wrote.
If Timothy ends up getting arrested for his crimes, their downfalls would be simultaneous.


source: www.bustle.com