One of the interesting phenomena of experimenting with strong opiated cannabis and magic mushrooms back in our late teens,
was the point of doped stupor when vision / perception with eyes open of shut
started to focus and fragment into pixelated / pixilated cell-like patterns within patterns within patterns..... etc.. etc...
until slumping into stoned dreamy oblivion...

At best they were extrordinarily fun explorative 'trips'... but to where and how far....????

At worst, we were witnessing from the inside the scary withering and death of our young bright brain cells as they fried and popped into burnt out particles...????

But back in the 1970s, prevailing counter culture guides to better alternative lifestyles
convinced us of the essential requirement for drug experiences to expand minds and open up consciousness...

irresepective of irresponsible and negligent long term effects on our young developing minds...

Now, after an adult lifetime of diminished intelligence, I count the costs rather than the benefits...