Killing a person does not eradicate their ideology, because others will take it up, and it will live on with even greater momentum

"Killing a person does not eradicate their ideology, because others will take it up, and it will live on with even greater momentum. In the other world, the spirit of a prophet or a martyr continues to hold the same convictions, the same desire to enlighten human beings and to help them evolve. While he was on earth, it was not possible for him to meet everyone capable of taking in his ideas, because these people were too dispersed. But once on the astral plane, he is free to seek them out and influence them . This is why the death of certain initiates can often enhance the propagation of their ideas.

By remaining on earth, of course, a master can work, act, and serve as a model, but his influence is limited to a very small number of people: those who surround him, who approach him, who know him. But once disengaged from his physical body he can rouse a far greater number of spirits. This does not mean that he must have himself massacred in order to have more influence. No, but it is useful for you to know the laws governing the material and spiritual worlds"