I really like what thom had to say on your other post:
As such, the best advice is to always stay as grounded as possible in the direct sensate apprehension of what is happening, always - whether this is simply the sensations of breath as per anapana practice, or moving through more exotic transpersonal experiences, traumatic experience or blissful experience. If you can stay grounded in the direct sensate reality of whatever arises, the greatest insight and healing will arise. It could be said that the point of realisation (awakening / enlightenment) is for the totality of experience, no matter the content, to shine just as it is in it's original self-luminous spontaneity - the environment where compassionate activity cannot help but happen and suffering has no hold. Shamanic work is a hardcore and colourful way to learn to do this, but the work is at base the same.
So rather than shut out the experiences just let them manifest without giving them any weight. i.e. don't try and control them and don't judge them.
Personally when things are happening a little "too fast" and my normal way of viewing the world is getting smashed up a bit, there is the temptation to hold back but I think it is worth it even if it is a bit frightening.