Mahabharata 12.238.4

महतः परमव्यक्तमव्यक्तात्परतोऽमृतम्अमृतान्न परं किंचित्सा काष्ठा सा परा गतिः

mahataḥ paramavyaktamavyaktātparato'mṛtamamṛtānna paraṃ kiṃcitsā kāṣṭhā sā parā gatiḥ

Our plain-language meaning of this verse is waiting for scholar review.