You manifest what you say you want,
and you manifest what you say you don't want.
When we express ourselves in a negative fashion, we draw the exact opposite of what we desire into our lives. An example of this is evident when we say that we don't want an accident or a sickness to occur. What most of us don't understand is that by talking about anything - whether we want it or we don't - we invoke it; we attract it into our experience.
You see people do this all the time. They'll be talking about something they wouldn't want to happen, and, sure enough, it happens. What they weren't aware of is that, in their thinking processes, they pictured it happening. Since their thoughts are always creating their future, they, in fact, brought it to life when they said they didn't want it to happen.
The antidote to having calamities and accidents befall you is to speak only in the positive, to be even more vigilant of what you're saying, and to stop yourself before you give voice to the negative. Then, you can replace the "I don't wants" and all the talk of calamities by saying what you do want. If, for instance, you catch yourself saying, "I don't want war," which, as you have learned, will only conjure up more aggression and violence; instead, you can say, "I intend that I am living in peace." As you phrase your words like this, you invoke only the positive. There's no possibility for war because you haven't mentioned anything about it.
Some thoughts play tricks on us, having us believe that we are keeping our undesired experiences at bay by voicing our resistance to them. Now, however, as we're beginning to explore, more closely, how our thinking and speaking works, we can see that we are undermining or sabotaging ourselves by all our negative talk; that we are the cause of our calamities by the fact that we talk about them.
This comes from http://www.intenders.org a free service you can subscribe to. Using the word "intend" may make this more comfortable for many, but in PSYCH-K, as well as stated by Eckhart Tolle, it's more powerful to speak in the now. "Intend" is a step removed from the "Now".