Mantra for Pineal Gland?

[ess]

Is there a mantra specifically for the pineal gland?

[Zygisrko]

GAUM or AUM.

Honestly you can vibrate anything in your pineal gland, Runes, Sanskrit, elements, etc.

[luis]

Is there a mantra specifically for the pineal gland?

Yes, it's Gaum. This is the one that is generaly good, other one that i have tried are Shrim (wich even just using in my sixt chakra make my pineal gland work) and Soma. If you are beginner just start with Gaum for now.

[luis]

GAUM or AUM.

Honestly you can vibrate anything in your pineal gland, Runes, Sanskrit, elements, etc.

But only the water element, i don't think you can put Fire or any other element's, just like you can put the fire element in your brain.

[Stormblood]

Other than what other people said, you could use Haum or Saum or both. To understand why you should read this quote from a sermon.

In Hinduism the most important mantra of Kundalini Yoga is that of Shiva and Shakti which is the Ham (Shiva) and SA (Shakti) mantra. This is used as part of a prana Kriya to open the centres in the brain. However, in Kabala, the symbol of the open hand is the crown chakra and the all seeing eye is the pineal gland or as they call this the Eye of God. The full and proper spelling of this mantra in the ancient Hindu texts is Haum Saum. Haum is the bija mantra of Shiva and placed in the crown as mentioned in the previous article on this subject. And Saum is the bija mantra of Soma the moon deity the sixth chakra. The five fingers of the Hamsa hand in Hinduism and Buddhism represent the five elements which come together in the Third Eye.

Sources:
https://ancient-forums.com/viewtopic.php?f=24&t=2277