Use karma yoga as a practice of ethical purification

The Gita teaches that selfless action gradually purifies the ego — each act of genuine service reduces self-centred craving.

Why it works

The classical karma yoga claim is that acting without ego-investment gradually dissolves the vasanas (deep-seated tendencies and cravings) that generate suffering. Psychologically, repeatedly acting against habitual self-serving patterns weakens those patterns’ neural prepotency — the same mechanism by which deliberate practice of any alternative behavior reduces the automaticity of an old habit.

How to do it

1. Identify one habitual self-serving pattern in your work or relationships (taking credit, avoiding fault, deflecting responsibility).
2. Practise the opposite once per day — giving credit, acknowledging fault, taking responsibility — as a karma yoga act.
3. Notice the internal resistance and sit with it rather than acting from it.

Evidence

Habit change research shows that acting against a prepotent habit weakens its automaticity over repeated trials. Self-serving attribution biases are well documented as psychologically self-protective patterns; deliberately countering them is behaviorally demanding but feasible. (mechanistic)

The spiritual claim of vasana purification is contemplative and philosophical, not a tested psychological hypothesis; the behavioral mechanism of habit-weakening through counter-practice is separately supported.

Common mistake

Picking a purification practice that is performable rather than genuinely challenging — if the action generates no internal resistance, it is not working with the actual pattern.