Very good in indeed!
So we got a few hits:

• Aware
• Yellowish
• fluid
• Teardrop shape
• Located in the head

So now, focus on this experience. See if its constant true. Bee with it.

• Is the yellow-ish light essential or something that can come and go?
• Is the "sense of front-center of my head" always there? or also something that can come and.
• Is the shape always the same?
• Is it always aware?

Find out which of these aspects of your self is always true ;)