Children abused during their young years often grow up experiencing obtrusive thinking.
Thoughts, they have no desire to be experiencing.
These patterns of thinking are suppressed and rooted into consciousness as a child and can manifest in the mind of the child as he or she grows up.
Intrusive and obtrusive thoughts can totally ruin any sense of relationship to life a person may actually come to meet. It is therefore highly important to understand this potential and to understand the only path to successfully deal with such inner psychological pain, rooted in events now long gone.
The answer to the problem, is to be found, in the problem itself.