Do you not find that when you meditate, and ask questions of the divine, it answers back?
For starters, meditation means a lot of different things to different people, so sometimes discussions won't bear any fruit unless we're talking about the same thing. I am not sure in this case. I suspect we won't be on the same wavelength. Regardless, I'll answer, based on my understanding and version of Hindu meditation.
One of my Guru's statements on it was, "You go in, and in, and in, and in, and then you go in some more. After you get there, you go in some more still."
I think that shows pretty clearly that there are levels ... and levels of skill at it ... many, each deeper than the next. Another quote was 'Some people, as soon as they get any realisation at all, (like a flash of light, etc.) actually (said with a sense of dismay) are so eager to tell someone they stop their meditation.
Further teachings from my Gurus, when I asked about how to determine whether or not something is real insight, or just your own mind/ego/instinct playing games with itself. That response was longer, and it went something like this.
True insight comes unbidden, and often OUTSIDE of meditation. In meditation you're looking for it, but the actual response will come in a moment of 'Aha!' when you're relaxed, walking, even driving the car, etc. The context here, I believe was for the beginner to tell, not the advanced meditator. In my understanding of the word, very few are advanced. (If you see an advanced meditator in action so to speak, they are as still as a corpse ... no swallowing, nothing, except a gentle breath, and that may last a few hours.
The other aspect in being able to tell is emotion. If there is any emotion (even a little) attached to it, then it's probably just your mind trying to trick you. True intuitive flashes come unbidden, are often contradictory to previous stuff, or a new way to view the situation entirely.