great tactfulness hyperspace f..  many over at the ayahuasca.com site go over topics similar to this one and a lot come to the same thing,,, that  love,  light, and understanding are some of the best means to disrupt any kind negative spiritual growth/entities/thoughts of/on  anything that 'seems' try to take hold negatively when people begin to open up to higher places. its almost as simple as when people say to surround yourself with positive people, and these people can make your success. intra-dimensional beings i imagine would be no different. cultivation of positivity in these states, maybe even with good intending allies, in this world and hyperspace, could do nothing but embellish anyones life for the better. 

it is interesting to me as well that amazonian shamans who have worked with ayahuasca, which would be the oldest known record of human use with dmt, would also mention spiritual parasites.