remembering a visualization

I was reading a thread in Catknits on Ravelry and remembered a day in Berkeley when I out of curiosity sat in on a visualization class being hosted in a library. I at first thought it all very hokey but I came away with something that has helped me.
We all were sitting there listening to the presenter as he walked us through a visualization. I will share as much as I remember.

Find your quiet place, ground yourself to it.
Place your feet firmly on the floor and see your feet slip into the ground forming roots.
 Let the roots grow firm. Feel the Earth supporting and nurturing you.
See your arms and hands reach up as a tree branches into the sky,
Let the branches reach out and cover the Earth, holding life and shelter.
When you are strong in your grounding picture a pure light surrounding you.
Now
Picture out in the vast reaches of space a vortex, or hole.
Take all that upsets you, all that has hurt you, all that makes you cry.
Bundle this all up and toss it in the hole,
Now let it all go it is no longer with you and cannot harm you any more.

This has helped me many times, the first time I started laughing as I pictured a person being stuffed in this swirling vortex and standing over them slamming them in with a huge pole as they tried to crawl out.

The presenter later said that was the first time he had laughter as a reaction. When I told him what I saw he thought my visualization a bit violent.  But for me it felt like a weight had been lifted. I was at peace and I had not even noticed how tense I had been.

if this helps anyone,  I am glad to share.