Sri Krishnamacharya used to tell me: 'Do the Headstand when...

Sri Krishnamacharya used to tell me: 'Do the Headstand when you are tired and in need of a tonic; when you are unable to fall asleep; when you are hungry, nervous and unhappy. Do it when in need of relaxation, when the brain is clouded, when you are in low spirits. Do it when your thoughts are distracted and you cannot concentrate properly or meditate.'