The symbol, or glyph, of Scorpio is generally considered to be a representation of the legs and tail of the Scorpion, signifying the power of this Sign to suddenly and fatally (and often with a hint of wilful cruelty or vindictiveness) sting whatever and whomever may have hurt its feelings or denied its strong-willed desires. This glyph has also been interpreted as a modification of that associated with Virgo, but into a symbol of male sexuality and selfish instincts. However, on a psychic level, Scorpio does indicate penetrating insightfulness. Displaying an upward arrow extension, the symbol of Scorpio represents energy in the form of an upward movement of the soul in its journey homeward. This is also an energy that is not easily constrained and carries an impulse to invade in an unswerving and focused manner.