Classically, as much as science tells us about the plexuses in the body, the sages told us centuries ago about the chakras. And what a surprise—they match so closely. Take the Mooladhārā Chakrā, the root. Doctors know this as the pelvic plexus. It has four petals, just like the scriptures say—Chaturdalam.
Now normally, in an average person, only subtle currents are visible, but when someone is fully awakened, that pelvic plexus looks just like four radiant lotus petals, perfectly formed, and spinning at the centre. And if you were to peer inside that space with spiritual vision… you might see a tiny light revolving… and inside that light—Shri Ganeshā!
10777·§130-131 the passage alone