त्वमहमिदमितीयं कल्पना बुद्धिदोषा -त्प्रभवति परमात्मन्यद्वये निर्विशेषे ।प्रविलसति समाधावस्य सर्वो विकल्पोविलयनमुपगच्छेद्वस्तुतत्त्वावधृत्या ॥ ३५५ ॥
In plain words
This whole business of 'you', 'I', and 'this' is just a construction, born from a flaw in the intellect, laid over the Supreme Self, which is truly non-dual and beyond every distinction. Once that Self shines forth in samādhi, every one of these constructed differences simply dissolves, the moment the true nature of reality is directly grasped.
Close to the Sanskrit
This notion 'you', 'I', 'this' arises, due to a fault of the intellect, in the Supreme Self, which is non-dual and without distinction. When [the Self] shines forth in samādhi, all of this [seeker's] mental construction attains dissolution through the ascertainment of the true nature of reality.