I have some real trouble with meditation. Last time I acidentaly open a doorway of some sort and the time before that I sealed my energy for two days! Does anyone have any advice how to keep things like that from hapening?
It is good to have protective object or blessing. Such as holy water or sage. I found salt helps keep poltergeists away. Just do not let anything in your mind and say a prayer before meditating. I hope I helped!