Wheat is agreeable is called happiness. What is disagreeable is called misery. Happiness is the outcome of penances practisted. When they are not practised, the outcome is misery. See the fruits of practising and abstaining from penances.
यदिष्टं तत् सुखं प्राहुद्देष्यं दुःखमिहेष्यते। कृताकृतस्य तपस: फलं पश्यस्व यादृशम्॥