I'm not sure the Buddhist monks are trying to reach "states of consciousness", whatever that might mean. In general one tries to still ones mind of the miasma of thoughts that pop in and out of our awareness during the day, and ready ones mind for seeing reality as it really is, i.e. reach enlightenment.

yes those are states of consciousness.
alpha, theta, delta....
same thing....
monks hold that state, now you can too.
same thing