strikes hardest ... when it reminds you how pertinent its dynamics remain 
(ROOT (VP (VBZ strikes) (ADVP (JJS hardest)) (, ...) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (VBZ reminds) (NP (PRP you)) (SBAR (WHADJP (WRB how) (JJ pertinent)) (S (NP (PRP$ its) (NNS dynamics)) (VP (VBP remain)))))))))
(ROOT (VP (VBZ ) (ADVP (JJS )) (, ) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBZ ) (NP (PRP )) (SBAR (WHADJP (WRB ) (JJ )) (S (NP (PRP$ ) (NNS )) (VP (VBP )))))))))