What is the third eye?
Question

What is the third eye, and everything that is connected to it? Is it real? What is the ruling concerning it?
Praise be to Allah.There is no such thing as the third eye, which they say is on the forehead, between the eyes. This is a concept that originally stems from idolatrous religions.
See: https://bit.ly/3vnLwQY
There is no mention in the Qur’an or Sunnah, or in the words of the Sahaabah or the leading scholars who came after them, of this so-called invisible eye.
But there is insight (baseerah), intuition (faraasah) and inspiration (ilhaam), all of which cannot be acquired by one’s efforts; rather they are gifts from Allah to some of His slaves.
With regard to insight, al-Jarjaani said in at-Ta‘reefaat (p. 46): Insight (baseerah) is an ability in the heart that is illuminated by divine light, by which a person may see the true nature of things and what lies beyond their physical appearance. It is similar to eyesight with which he sees the physical appearance of things. End quote.
With regard to intuition (faraasah), Ibn al-Qayyim (may Allah have mercy on him) said, discussing its cause, its true nature and its origin:
It is light that Allah shines into the heart of His slave, by means of which he distinguishes between truth and falsehood, good and bad, the one who tells the truth and the one who tells lies.
Its true nature is that it is an idea that springs to mind and rules out its opposite; it overwhelms the heart like a lion overwhelms the prey.… This intuition is commensurate with the strength of the person’s faith: whoever is stronger in faith, his intuition will be sharper.
The origin of this type of intuition is life and light that Allah, may He be exalted, grants to whomever He wills of His slaves, and the heart is revived and illuminated by that, so that his intuition is hardly ever wrong. Allah says (interpretation of the meaning):
{And is one who was dead and We gave him life and made for him light by which to walk among the people like one who is in darkness, never to emerge therefrom?} [al-An‘aam 6:122].
His heart was deadened by disbelief and ignorance, then Allah revived it with faith and knowledge, and through the Qur’an and faith, He gave him light by means of which he finds the appropriate way of dealing with people, and finds his way in the darkness. And Allah knows best." (Madaarij as-Saalikeen  2/483-486).
Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allah have mercy on him) said: Allah, may He be glorified and exalted, gives to many people knowledge through intuition, by means of which they may learn about a person’s circumstances and character, by looking at his facial features and eyes, and also some of what he says, as Allah, may He be glorified and exalted, says (interpretation of the meaning):
{but you will surely know them by the tone of [their] speech} [Muhammad 47:30].
Tafseer Soorat al-Baqarah (3/368).
Be very cautious and avoid becoming attached to notions of chakras, auras and energy, because all of that is connected to idolatry.
See also the answer to question no. 284674 .
And Allah knows best.