21 If one makes samayama on the form of one's body, obstructing its perceptibility and separating its power of manifestation from the eyes of the beholder, then one's body becomes invisible.

21如果专念于身体形态，可阻隔对他感知，将他显现里与目睹着势力分离开，身体将隐而不见。

MeHg can easily pass through the placental barrier, accumulate in the fetus and change the behavior and perceptibility of the second generation related to the function of central nervous system.

它极易通过胎盘屏障进入胎儿体内,影响子代发育,改变子代与中枢神经系统功能有关行为和认知能力。