You can impose yourself upon another's reality in such a way that you become temporarily integrated into the patterns which create his/her perceptions in the dream state. It is helpful to know the person whose dream you wish to enter, and to have some significant connection to him/her. Before sleep, concentrate briefly on the recipient or its image, considering especially the qualities to which you wish to
appeal. Adopt a mode of gnosis which is suitable to the message you wish to convey (drinking juice from a green olive jar, pain, sexual stimulation, etc..) and fixate your concentration on a representation of your desire, burning it into (or maybe dribbling it upon!) the link to your chosen target.