The only comparable description I can come up with is not something we refer to the Golden State. It's first Jhana and it sounds like a visual representation of first jhana.
That said, I wouldn't consider it the golden state per se.
Understand that in Chinese cultivation, gold is huge, but it is a reference to jing that has been refined through meditation during the development of the lower dan tian. That is the gold. In addition to seeing that state in first jhana, from my personal experience, I've seen:
1. White light (purification of mind)
2. Internal and external transformation
The above are the most immediate things I have experienced during the state. I can't say if it was golden because entering first jhana, you are drawn to the area of concentration. In the daoist cultivation, it is lower dan tian. In Indian cultivation that emphasize vipassana, you can also enter the state through concentration on the point between the nose and the upper lip.
Hell, I entered first jhana on a thought (get me out of here! and who am I).
One caution about first jhana (especially in some systems) is that first jhana is somewhat incomplete. Yes at its start is a pull toward the point of concentration, but it is also incomplete because it begets further refining. To further remain in the heart to transform who you are inside and out. It's sobering, but it is only the start of things.
So if mind_bender and myself are referring to the same thing as first jhana, and you've experienced first jhana, then at the time you don't necessarily need any other practice. Refine that! Enter the state for longer periods, and so on.
You'll realize you get the kundalini and bla bla bla.
Hope it helps