In meditation there is a state of being where the brain waves are slow where they say you can reach?

Yes , even i was able to reach to mars . and able to see the red dust and experience the hypoxia for time being. But it depend on your aura mostly
about alpha beta delta and theta these r stages of brain from wakefulness to deep sleep and are in form of premotions and dreams

I have had meditation visions and had times when time with in slow but not out . An have felt so renewed and rested in only 10 min or so .

O’ my yes,
and when exiting this state is when paranormal
things start to unfold,,,,,,
it became too much, so i stopped with meditating
with visual techniques,,,,
now i meditate without any form or vision to concentrate on
save for attention of breathing………