Is there any bright flashes of light seen during meditation?

Well, I’ve been meditating for 26 years and I’ve never seen a blue (or any other color) flash. I would be wary of anyone who told me to expect any kind of “special effects” in meditation. The expectation alone sets you on the wrong path.

There should not be. What you may be experiencing must be unrelated to meditation.

I have been meditating for 30 years. I have never seen any flashes of any light.

I’ve seen flashes of light from prolonged meditation. I believe it is the change of the lighting in the day. Or neutrinos. They are spotted In the space station to astronauts while sleeping .

My guru told me to pay little attention to the flashes and other mental distractions as the goal of meditation is an empty mind free of all mental distractions. The better you get at ignoring the noise in you skull the deeper your meditation will become.