A lot of people refer to the kundalini like it's a serpent that is either risen permanently or its not. Is this really the case?
Is it possible for *some* kundalini energy to emerge during meditation?
When learning to move a small muscle as a child, you have to first recognise it, experience it, then keep experiencing it's movement before you can use it with strength. Or it might be helpful to think of physical posture correction, where you have to engage atrophied muscles regularly before they are permanently, correctly supporting the spine.
This feels right to me, and the on/off either-or mentality of the kundalini does not.

