The syllable IN makes the pituitary and pineal glands vibrate. The mantra RI has the power to vibrate the fire of the Holy Spirit, Pentecost, in the pineal gland. Thus, the sixth and seventh senses called clairvoyance and polyvoyance are acquired. Both senses are on top of the head.

Behold, I stand at the door [pineal gland], and knock: if any man hear my voice, and open the door [pineal gland], I will come in to him, and will sup with him, and he with me. Revelation 3: 20