[akomtu]

Here's a possible semi-scientific explanation. Neurons deal with electricity and magnetism, and sometimes can act like antennas. Normally this external noise gets filtered out, but this filter may get leaky or it can be disabled with chemicals like LSD. For an average brain, this additional sensory input is overwhelming and leads to nothing good.

[loa_in_]

The oversimplification in your description is unnecessary. The antennas and forces are instead sensory in nature. We constantly receive much more information through our sensory pathways than we're usually consciously aware of. I'm autistic and I have little to no filtering. That helps me "see" things most don't but I'm also overwhelmed for example just being in a backseat of a car while people in front are talking. My brain constantly tries to compute what happens in the car engine because I'm interested in physics, whether it is or isn't relevant to life at the time.