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 Once the troublesome mind “begins to compose speeches and dream up arguments, especially if these are clever, it will soon imagine it is doing important work.” But if you can surpass those thoughts, Teresa explained, and ascend toward God, “it is a glorious bewilderment, a heavenly madness, in which true wisdom is acquired.” Unknowingly echoing the poems of the Persian Sufi mystic Hafiz, who demanded why, with a God so wildly loving, are we not all screaming drunks, Teresa cried out in her autobiography that, if these divine experiences were mere madness, then “I beseech you, Father, let us all be mad!” 
“Just as there exists in writing a literal truth and a poetic truth, there also exists in a human being a literal anatomy and a poetic anatomy. One, you can see; one, you cannot. One is made of bones and teeth and flesh; the other is made of energy and memory and faith. But they are both equally true.” 
 The more angry or impassioned the subject becomes, the hotter and deeper those red flashes burn. But mystics across time and cultures have all described a stilling of the brain during meditation, and say that the ultimate union with God is a blue light which they can feel radiating from the center of their skulls. In Yogic tradition, this
is called “the blue pearl,” and it is the goal of every seeker to find it. Sure enough, this Tibetan monk, monitored during meditation, was able to quiet his mind so completely that no red or yellow flashes could be seen. In fact, all the neurological energy of this gentleman pooled and collected at last into the center of his brain—you could see it happening right there on the monitor—into a small, cool, blue pearl of light. Just like the Yogis have always described. 
This is the destination of the kundalini shakti.