270. When it is wished to communicate with a designated spirit, he must of necessity be invoked. (No. 203.) If he can come, this answer is usually obtained : Yes; or, / am here; or, What do you want of met Sometimes he enters directly into the matter, answering by anticipation the questions it is proposed to address to him.
When a spirit is invoked for the first time, it is best to designate him with some precision. In the questions addressed to him, we should avoid dry, imperative forms ; they might be a reason for his withdrawal. The forms should be affectionate or respectful according to the spirit, and in all cases testify the kindness of the innovator.