@Koeke If you want to access this chakra more, then become aware of Medulla (tricky, as it is in your body and not on the skin). Feel looking from Medulla to Bhrumadhya, like you feel looking from your eyes to an object in your field of view. Place yourself (like a miniature version of you as an observer) at Medulla. You could imagine that you are the lighthouse illuminating the body from Medulla. Now, illuminate Bhrumadhya. Focus your light there while "standing" at Medulla.