The Crown Chakra is located near the inside of the top of the head or slightly above your head and corresponds to the connection of Divine energy. It is the highest energy vibration. It is affected by prayer, meditation, and one's feelings toward the Diety. Any extra external energy you need for cleansing purposes come through this chakra.
When this chakra is constricted or out of balance, you may experience: Depression, obsessional thinking, confusion, Sensitivity to pollution, chronic exhaustion, epilepsy, and/or Alzheimer's.
The Crown chakra lies at the top of the head, it is home to our pure spirit, this is where we become one with the divine. As we go through our darkest times, and tragic things happen, and when we been disillusioned by material gains, we search for something to answer our calls, this is when we start to look within for the answers we seek. When we find that inner peace we become whole again. ‘To simply be.’ A feeling of oneness.
Source: Mandala Madness