《史记·八书·封禅书》
过了一年多，他的法术更加不灵了，天神总也不降临。
居岁馀，其方益衰，神不至。
After more than a year, his spells became less and less effective, and the gods never came.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 居岁馀，其方益衰，神不至。 [/INST] After more than a year, his spells became less and less effective, and the gods never came.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 居岁馀，其方益衰，神不至。
user
After more than a year, his spells became less and less effective, and the gods never came.
assistant