"A pattern emerges between the beats of your heart: It will carry your signal through the noise." - Dynamic Range
"A pattern emerges as your perception broadens: It will carry your signal through the noise." - Framerate
"A pattern emerges as your muscles expand: It will carry your signal through the noise." - Decibel

Found in various locations throughout the game, Dynamic Range, Framerate, and Decibel upgrades increase your health, stamina, and power, respectively.

Valor's health is initially 40, and will increase to 80, 100, and 140, at 1, 2, and 3 upgrades respectively.

Valor's stamina is initially 60, and will increase to 85, 110, and 135, at 1, 2, and 3 upgrades respectively.