This is a well commented on subject.
The tech dictionary (as I remember it) describes Clear as "Being at cause over mental matter, energy, space & time".
On looking up "at cause" it said ; Able to greate or uncreate.
The state of Clear occurs when the person realises that they ate mocking it all up.
There is NOTHING in Scn materials that stipulates this can only occur whilst engaged in Scn activities.
This leads, of course, to heresy of olympic proportions.
I have successfully rehabbed many people's state of clear where they were doing a wide range of activities; TM, yoga, presence drills, aikido. It does not matter a jot what the person is doing, it is the fact that they have achieved that realization.
Many cases got "parked" because they were denied the truth of this.
It is funny to watch cult fanatics try and grapple with this datum. they go quite demented in trying to enforce the Scn connection with the state.
I am sure many readers out there can connect with this. If you went clear doing something other than Scn, then acknowledge it.