Heaven is in my opinion undescribable ,total accetance, bliss, freedom ,etc. The list is as endless as the ideas of what heaven could be. I only know that it is our goal to eventually reach it. Hell is the total absence of God. Yin,Yang,positive,negative everything has a balance.
Nasties are negative entities that try to cause turmoil and strife in our lives.
Nasties feed on the negative energy we project when we experience trumoil or strife. They are attracting Nasties like seaguls are to some one with bread on the beach and, more nasties need more food. More hungry nasties will try to cause more turmoil and thats how the downward spiral starts. The best way to rid oursevles of these Nasties is to always try to be positive and to reduce the negative influences in our lives. Then they will have less interest in us and move on to better feeding grounds.