Bhagavad Gita 16.23 · Krishna
When impulse runs the show
यः शास्त्रविधिमुत्सृज्य वर्तते कामकारतः।
न स सिद्धिमवाप्नोति न सुखं न परां गतिम्॥
yaḥ śāstravidhimutsṛjya vartate kāmakārataḥna sa siddhimavāpnoti na sukhaṃ na parāṃ gatim
One who sets aside the guidance of scripture and acts on desire's impulse reaches neither perfection, nor happiness, nor the highest goal.
What it means
Krishna warns against living by impulse alone. Whoever ignores shastra, time-tested wisdom, and just follows desire, misses three things. Perfection. Happiness. The highest goal. It's not about blind obedience. It's about valuing guidance wiser than our passing moods.
The story
Duryodhana ignored every elder's advice and followed his impulses straight into war. Krishna shows Arjuna what a life with no outside guidance becomes.
In your life
Maybe you know someone who quit a job, sold a house and moved, all in one impulsive week, and regretted it. Before your next big decision, ask one wise person for advice.
Impulse alone leads nowhere good.