Vishuddha chakra is the purification centre; it is associated with higher discrimination, creativity and self-expression. When it is activated the negative experiences are transformed into wisdom and learning. It is related to actions of speaking, sense of hearing and the Sky/Akash element or Ether. Meditation upon Vishuddha is said to bring about various siddhis like vision of the three periods, past, present and future; and the ability to transcend the three worlds.