Neti neti is an analytical process of conceptualizing something by clearly defining what it is not.
The following was extracted from Avadhuta Gita 1.25 on Wikisource:
Sanskrit in Devanagari:
तत्त्वमस्यादिवाक्येन स्वात्मा हि प्रतिपादितः ।
नेति नेति श्रुतिर्ब्रूयादनृतं पाञ्चभौतिकम् ।। २५।।
IAST:
tattvamasyādivākyena svātmā hi pratipāditaḥ /
neti neti śrutirbrūyādanṛtaṁ pāñcabhautikam //25//
By such sentences as “That thou art,” our own Self is affirmed. Of that which is untrue and composed of the five elements – the Sruti (scripture) says, “Not this, not this.”
