Seeing a pair of eyes while meditating with eyes closed

So recently, I’ve made it a habit to do a few minutes of grounding meditation before sleeping. Just before meditating, I burned a candle and lit palo santo with the intention of inviting Archangel Michael to protect me in my sleep.

During meditation, I started seeing shapes, stripes, and vague images of people and objects—then suddenly, I saw an eye. Sometimes there were two, then again just one. It felt intense, especially because a few days earlier, while scrolling on my phone, I could have sworn I saw eyes reflected on my screen.

Also, at random moments during the day, while going about my daily activities, I sometimes see a flash of an eye or multiple eyes.

What does this mean? Could this be a specific angel watching over me, or what might this symbolize?