Net constellation (Chinese astronomy)
One of the 28 traditional Chinese lunar mansions (二十八宿), specifically the Net mansion. Used in historical and astronomical contexts, often in reference to the White Tiger (白虎) group.
The Net is one of the 28 mansions, corresponding to the fourth mansion of the White Tiger.
lifetime; one's whole life
The kanji 畢 originally meant 'net' or 'to finish', and was adopted in Chinese astronomy to name the Net constellation. The reading ひつ is the on'yomi.