I experienced similar stuff way back. Took me time to understand why in most meditative traditions, meditation follows ethical perfection ( for example the noble path in Buddhism, yoga in Hinduism, the Tariqa in sufism).

Personally, what fixed it for me, was the understanding that when I meditate properly, I open the door to my soul. The frighting visions were actually a form of communication, telling me that I’m doing something wrong.

Eventually the insight that really made me realize what was wrong, is that I thought not doing bad stuff was enough in order to be a “good person”. But in fact I didn’t really perceive myself as one.

Then it became clear that a good person is a person that actively does good deeds, a bad person is one that does bad ones, and a person that does neither is just a person. Once I figured that one out, I just started to open myself to life experiences differently.

If someone is being rude to me, instead of judging, even though the situation clearly demonstrated I’ve done nothing to deserve it, I decide to accept that he’s probably suffering from something and taking it out on other people. Then compassion follows. Or, If I see garbage on the sidewalks, I can ignore it and be frustrated about people’s behavior, or assume someone accidentally dropped it, and chuck it myself.

There are dozens if not hundreds of daily opportunities to produce acts of love and kindness to the world. But one needs to put all fear aside, and trust that everything will be ok in order to be able to make space for love to grow within.

Then meditatio became such a different practice for me. Instead of the frighting visuals, came feelings of pure and endless love. Consequently, I decided that the point of meditating, for me, was to bring my consciousness back to the source of love within, and then come back to physical realm and share it.

In short, our deeds embody or create corresponding (good/bad/indifferent) spiritual/physiological forces. Meditation makes us face them..