枕戈寢甲

1. • lit. to sleep on one's armor with a spear as a pillow (idiom)
2. • fig. to keep ready for battle at all times

Character by character

• 枕(zhěn)pillow
• 戈(gē)surname Ge
• 寢(qǐn)lie down to sleep or rest
• 甲(jiǎ)first of the ten Heavenly Stems 十天干 shítiāngān