[Dakini]

This is a good question and opens a lot of avenues.

Yes, I would say I am grounded right now, but there have been times of expansion where I watched specific things 'dissolve.'

When you feel un-grounded, as can happen in Grof's Spiritual Emergency, there are simple things to do to ground.
-Eat meat
-Soak in a tub of water with Sea Salt added, or go to the ocean and get in it.
-Hard physical exercise
-Stop spiritual practice and meditation until you feel safe
-If you are in a Vortex area, get out until you are safe

-If you are in danger, and I hate to say it, but xanax or clonapin will do for short-term.

In more medical terms, the more solid someone's ego is, the less apt s/he will be to feel un-grounded. The more solid your ego is points to things like less trauma in one's life - especially in childhood, less mental health issues. If the ego 'fractures' - like in psychosis, spiritually-induced psychosis, and vast spiritual expansion, there is a definite lack of grounding that occurs.

That said, if you have been through trauma as a child, your ego is more vulnerable to a quicker fracture, a quicker dissolution. In some ways, there is a thinner veil to the spiritual realms. This is why spiritual expansion can pose a certain danger to certain types of people. I have seen very gifted people hospitalized by family during expansion, put on psychiatric drugs. This stops the spiritual process. It is a process, though, and will usually resume later.