The mind sheath

मनोमयः कोशः कः? मनश्च ज्ञानेन्द्रियपञ्चकं मिलित्वा यो भवति स मनोमयः कोशः ।

manomayaḥ kośaḥ kaḥ? manaśca jñānendriyapañcakaṃ militvā yo bhavati sa manomayaḥ kośaḥ |

What is the sheath made of mind? The mind joined with the five organs of knowing. What they become together is the sheath made of mind.

In plain words

What is the mind sheath (manomaya-kośa)? It is the mind joined with the five organs of knowledge. Together they form the mind sheath.

The terms set down here