Thank you Gimpy. The first point, I nearly said pint, as these discussions seem to resemble those on subjects gone over in 'setting the world to rights' situations that occur in locals, only on a more informed level, is that of ideas in a random free state, being captured by those elements in a being that attract a particular type of idea to them because of their innate sensibilities, enstructured either through life experience, genealogy, or karma, which can be a tendentious and as yet possibly unproven concept, or a combination of these factors in whole or in part. There is also the concept of projection of ideation by whatever means by those with an agenda, who hope to have the agenda gain wider acceptance. I need hardly remind you of the experimentation allegedly having been undertaken in this area by government agencies.
The second point, on karma, which is a rather all encompassing concept, brings into view the question of whether , taking it as an influencing factor in a given, i.e., 'born with' mentality, incuding genetic predisposition, this would cause a being to tread once again the same ideational course supposedly undertaken in a hypothetical existence,accruing the same cloud of emotionally charged ideas around them to result again in the same life results experienced in a necessarily hypothetical previous existence.
The third point, I think can be tentatively responded to positively. In the contingencies of life, this technique has been useful. It is from a series of aphorisms in 'The Handbook to Higher Consciousness'.
The fourth point...I very rarely get headaches.