ज्ञानमन्नम्
In plain words
is food.
The commentators
Śivasūtra with Kṣemarāja's Vimarśinī
अस्य च - ज्ञानमन्नम् ॥ ९ ॥ यत्पूर्वं ज्ञानं बन्धः इत्युक्तं तत् अद्यमानत्वात् ग्रस्यमानत्वात् योगिनामन्नम् । यत्संवादितं प्राक् मृत्युं च कालं च कलाकलापं विकारजातं प्रतिपत्तिसात्म्यम् । ऐकात्म्य-नानात्म्यवितर्कजातं तदा स सर्वं कवलीकरोति ॥ इति । अथ च यत्स्वरूपविमर्शात्मकं ज्ञानं तत् अस्य अन्नं पूर्णपरितृप्तिकारितया स्वात्मविश्रान्तिहेतुः । तदुक्तं श्रीविज्ञानभैरवे अत्रैकतमयुक्तिस्थे योत्पद्येत दिनाद्दिनम् । भरिताकारिता सात्र तृप्तिरत्यन्तपूर्णता ॥ इति । युक्तिर्हि तत्र द्वादशोत्तरशतभूमिकाज्ञानरूपैव । एतच्च स्पन्दे प्रबुद्धः सर्वदा तिष्ठेत् … । इत्यनया कारिकया संगृहीतम् ॥ ९ ॥
In plain words
Knowledge is food. And for him: The knowledge that was earlier called bondage, in "Knowledge is bondage", is food for yogins, because it is eaten, devoured. As was cited before in agreement: "Death and time, the whole array of kalās, the mass of changes, all that is native to experience, the whole brood of conjectures of oneness and of manyness: then he swallows it all." Or again, the knowledge that is reflective awareness of one's own nature is his food, because it brings full and complete satisfaction and so is the cause of resting in one's own Self. As the Vijñānabhairava says: "For one established in any one of these methods, what arises here day after day is the state of being filled to the brim: satisfaction here, and utter fullness." For the method there is nothing other than the knowledge of the hundred and twelve stages. And this is gathered up in the Spanda by the verse: "Let him remain always awake …"