Bhagavad-gītā 18.21

Explain simply

Speaker: Śrī Kṛṣṇa

पृथक्त्वेन तु यज्ज्ञानं नानाभावान्पृथग्विधान् ।
वेत्ति सर्वेषु भूतेषु तज्ज्ञानं विद्धि राजसम् ॥२१॥

pṛthaktvena tu yaj jñānaṁ
nānā-bhāvān pṛthag-vidhān
vetti sarveṣu bhūteṣu
taj jñānaṁ viddhi rājasam

Word for word (synonyms)

pṛthaktvena
because of division
tu
but
yat jñānam
which knowledge
nānā-bhāvān
multifarious situations
pṛthak-vidhān
differently
vetti
one who knows
sarveṣu
in all
bhūteṣu
living entities
tat jñānam
that knowledge
viddhi
must be known
rājasam
in terms of passion

Translation

That knowledge by which a different type of living entity is seen to be dwelling in different bodies is knowledge in the mode of passion.

Defined in the Gītā

Knowledge

What is knowledge?

Humility, pridelessness, nonviolence, tolerance, simplicity, approaching a bona fide spiritual master, cleanliness, steadiness and self-control; renunciation of the objects of sense gratification, absence of false ego, the perception of the evil of birth, death, old age and disease; nonattachment to children, wife, home and the rest, and evenmindedness amid pleasant and unpleasant events; constant and unalloyed devotion to Me, resorting to solitary places, detachment from the general mass of people; accepting the importance of self-realization, and philosophical search for the Absolute Truth—all these I thus declare to be knowledge, and what is contrary to these is ignorance.

Bhagavad-gītā 13.8–12

See the definition

Purport

The concept that the material body is the living entity and that with the destruction of the body the consciousness is also destroyed is called knowledge in the mode of passion. According to that knowledge, bodies differ from one another because of the development of different types of consciousness, otherwise there is no separate soul which manifests consciousness. The body is itself the soul, and there is no separate soul beyond this body. According to such knowledge, consciousness is temporary. Or else there are no individual souls, but there is an all-pervading soul, which is full of knowledge, and this body is a manifestation of temporary ignorance. Or beyond this body there is no special individual or Supreme Soul. All such conceptions are considered products of the mode of passion.

What this verse teaches

Knowledge (jñāna) in three modes

The three modes of nature, side by side Full table
GoodnessPassionIgnorance
Knowledge one undivided spiritual nature is seen in all existences 18.20 a different type of living entity is seen to be dwelling in different bodies 18.21 attached to one kind of work as the all in all, without knowledge of the truth 18.22

Bhagavad-gītā As It Is by His Divine Grace A.C. Bhaktivedanta Swami Prabhupāda © The Bhaktivedanta Book Trust International.