Blue is the color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Blue is considered beneficial to the mind and body. It slows human metabolism and produces a calming effect.
1 Backlash (sociology), an adverse reaction to something that has gained prominence.  Backlash (pressure group), a UK group opposing the 2008 law criminalising possession of extreme pornography.
1. (intr) to resound or re-echo: the explosion reverberated through the castle. 2. to reflect or be reflected many times. 3. (intr) to rebound or recoil. 4. (Metallurgy) (intr) (of the flame or heat in a reverberatory furnace) to be deflected onto the metal or ore on the hearth. 5.