In plain words
The body has come for nothing but the remembrance of the Name of God. That is why Mīrā: “O Kṛṣṇa! I went very deep into the ocean called saṃsāra and, with great toil, I gained the priceless pearl called the Name. See that this pearl, which I gained with such toil, does not slip from my hand again. Now I have no refuge but You, O Giridhārī!” So she prayed.
The very moment the Mahārāṇā drove Mīrā out and shut the doors of the Kṛṣṇa temple, there in Dvārakā too the doors of the Kṛṣṇa temple swung shut. However much anyone prayed, in however many ways they tried, they would not open. Repenting the wrong he had done, the Mahārāṇā set out to beg Mīrā's forgiveness. Mīrā reached Dvārakā and, calling on Him, “Giridhārī, Giridhārī....”, struck the temple doors with her head. The doors opening and Mīrā giving up her life: both happened at one and the same moment. Kṛṣṇa appeared before her and merged her into Himself. When Mīrā had only minutes left before she gave up her life, the Mahārāṇā came running: “Mīrā! Not knowing, I listened to my brother's words and betrayed you beyond all mending. Forgive me, forgive me, forgive me...,” he said, full of remorse.
Positive - Negative
Man today, unable to recognise the positive principle called God, leads a negative life in the delusion that he is the body. What is negative? What is positive? The nature of the mind that travels after impermanent, worldly desires: that is negative; turning the mind towards the Divine, which knows neither change nor alteration: that is positive. “Satyaṃ trikālābādhyaṃ”: that alone which does not change in all three times is Satya. To contemplate God, who is the very embodiment of such Satya: that alone is positive. We must not use this body for desires that are impermanent, transient and of the world. We must offer it to God and so make it worthwhile. It was Mīrā who gave us this ideal, true and eternal.