精神 (jīngshén) literally combines 精 (jīng), meaning 'essence' or 'refined energy', and 神 (shén), meaning 'spirit' or 'mind'. Together, they express the intangible inner force that sustains mental clarity, emotional resilience, and physical vitality. It’s more than just 'spirit' in a religious sense—it refers to one’s overall psychological and energetic state: alertness, morale, enthusiasm, or even willpower.

This word appears widely in daily speech, health discussions, and psychology. You might hear it describing someone’s demeanor ('He looks full of spirit'), a team’s morale ('The soldiers’ fighting spirit was high'), or medical conditions ('low energy' or 'mental fatigue'). Unlike English 'spirit', 精神 is rarely used for supernatural beings—those are usually 鬼 (guǐ) or 灵魂 (línghún). It carries strong connotations of human agency, focus, and inner strength, making it central to concepts like 精神健康 (mental health) and 精神压力 (psychological stress).