In a lot of traditions the “Third Eye” or “Brow chakra” is seen as the spiritual chakra. A chakra is an energy centre and most of them are connected to different parts of your aura and your subtle energy bodies.
In the case of the third eye chakra, it is associated with your mind. When you put your awareness on the third eye chakra it can stimulate experience and it can lead to you becoming aware on the lower dimensions, which may include awareness on the 4th and 5th dimensions.
Keeping things simple these dimensions are higher in vibration that you normally experience and so awareness of them can seem pretty amazing. But they are not “spiritual” in nature and although there can be useful insights and experiences, there is no growth of consciousness or spiritual development there.
Most of the personal change you would experience would fundamentally be a shift in your “understanding” and “philosophy”, corresponding with the brow chakra being the centre associated with the mind. Therefore such meditation is a mental based approach.
We do not recommend that you over focus or pay too much attention to this chakra. Some people find that focusing there can even lead to headaches. Spirituality starts beyond the dimensions that the brow chakra can access and beyond the limitations of your chakra system.
Once you are initiated into higher/spiritual light and sound energy then you will experience your crown chakra in a way not possible before initiation. You will also have an opportunity to explore the fact that it is more important to be full of love, than full of focus or information, and so the best advice we can give with respect to the brow chakra is do not pay too much attention, it is a distraction rather than a spiritual destination.