4.19

न तत् स्वाभासं दृश्यत्वात्

na tat svābhāsaṃ dṛśyatvāt

The line

The mind is not self-illuminating, because it is something seen.

नेपालीमा

चित्त आफैँ उज्यालो हुँदैन, किनकि त्यो देखिने कुरा हो।

Where it sits

The claim. 4.20 answers “it lights itself and the object at once.” 4.21 answers “another mind lights it.” Both fail. 4.22 says how awareness knows the mind without migrating into it.

Split: na (न) + tat (तत्) + sva (स्व) + ābhāsam (आभासम्) + dṛśyatvāt (दृश्यत्वात्)

Sanskrit, in depth

The words

WordGrammarSense
na (न)indeclinablenot.
tat (तत्)nominative singular, neuterthat. The mind.
sva (स्व)stemitself.
ābhāsam (आभासम्)nominative singular, neuterself-illuminating. Lighting itself.
dṛśyatvāt (दृश्यत्वात्)ablative singularbecause of being something seen.

The phrases

The mind is not self-illuminating, because it is something seen. sva (स्व) + ābhāsa (आभास) is a (अ) + ā (आ) = ā (आ). dṛśyatvāt (दृश्यत्वात्) is the because. What is seen is lit by another. The mind is seen, by the puruṣa (पुरुष) of 4.18. So it does not light itself.

Three words of doctrine after na (न). The rest of the argument defends this sentence against two replies.

Sanskrit in this line

-tvāt (त्वात्) as because, with dṛśya (दृश्य) “the seen,” the word from 2.17. na (न) on svābhāsam (स्वाभासम्). A short line, and the because is the whole argument. If you grant that the mind is seen, you cannot grant that it lights itself.

Say it back

Say the because in Sanskrit: dṛśyatvāt (दृश्यत्वात्).

Next

4.20. And both cannot be determined in a single moment.