The Shaktipaat Diksha is a special Diksha. There are various types of Shaktipaat Dikshas for various purposes. One normally takes Shaktipaat Diksha to solve some personal problems (marital, financial, domestic etc. ), activation of Kundalini, get success in some Sadhana, spiritual upliftment, success in meditation, Aayurveda etc. etc.
There are actually 32 subtle points on the spot known as the Third Eye on the forehead. 16 of these relate to spiritual accomplishments and 16 to material accomplishments. Very similarly there are 16 points of each in the Thumb of the Guru and by matching similar points in His thumb and on the forehead of the disciple Guru can activate all or some points and bestow specific benefits on the disciple by making some of His energy to flow into a specific point or points.