An excerpt from Affectionate Guidance:

Devotee: In Srimad Bhagavad Gita, Krishna has explained about karmma-yoga. Can karmma-yoga ever be seva, or devotional service?

Srila Govinda Maharaj: Karmma  and seva, action and divine service, are identical from the external perspective. Bhakti-yoga and karmma-yoga are the same apart from one thing—and that is the inner mood of the practitioner. The inner intention is the all-important, differentiating factor.

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