Lydia had a little rule of self-discipline which deserved to be, and was, its own reward. If ever personal troubles began to worry her she diligently bent her thoughts upon someone for whose welfare she was anxious, and whom she might possibly aid. The rule had to submit to an emphatic exception; the person to be thought of must be any one _save_ that particular one whose welfare she especially desired, and whom she might perchance have aided if she had made a great endeavour. However, the rule itself had become established long before this exception was dreamt of. Formerly she was wont to occupy her mind with Thyrza. Now that her sister seemed all but beyond need of anxious guarding, and that the necessity for applying the rule was greater than ever before, Lydia gave her attention to Mr. Boddy. The old man had not borne the winter very well; looking at him, Lydia could not help observing that he stooped more than was his habit, and that his face was more drawn. He did his best to put a bright aspect on things when he talked with her, but there were signs that he found it increasingly difficult to obtain sufficient work. A few months ago she would have had no scruple in speaking freely on the subject to Mary Bower, or even to Mrs. Bower, and so learning from them whether the old man paid his rent regularly and had enough food. But from Mary she was estranged--it seemed as if hopelessly--and Mrs. Bower had of late been anything but cordial when Lydia went to the shop. The girl observed that Mr. Boddy was now never to be found seated in the back parlour: she always had to go up to his room. She could not bring herself to mention this to him, or indeed to say anything that would suggest her coolness with the Bowers. Still, it was all tacitly understood, and it made things very uncomfortable. She was still angry with Mary. Every night she chid herself for doing what she had never done before--for nourishing unkindness. She shed many tears in secret. But forgiveness would not grow in her heart. She thought not seldom of the precepts she had heard at chapel, and--curiously--they by degrees separated themselves from her individual resentment; much she desired to make them her laws, for they seemed beautiful to her conscience. Could she but receive that Christian spirit, it would be easy to go to Mary and say, 'I have been wrong; forgive me!' The day was not yet come.