On the other hand if they don't understand it at all there's not much point in it.
Yes, I agree. The point right now would be to have a placeholder for later, and not to continue reinforcing something that later on could certainly bring more confusion (the current prayers).
24. If you reject any single sensation, and fail to distinguish between the conclusion of opinion, as to the appearance awaiting confirmation, and that which is actually given by the sensation or feeling, or each intuitive apprehension of the mind, you will confound all other sensations, as well, with the same groundless opinion, so that you will reject every standard of judgment. And if among the mental images created by your opinion you affirm both that which awaits confirmation, and that which does not, you will not escape error, since you will have preserved the whole cause of doubt in every judgment between what is right and what is wrong.
I'm afraid I don't fully comprehend what this paragraph reads. I believe my English is not so bad, but please bear in mind that it is not my first language and there may be nuances here that I'm not being able to grasp. What I'm getting is: If you reject one sensation your judgement will certainly be incomplete? That first long sentence is particularly difficult for me to follow all the way to the end. The second sentence I understood as: If you affirm an image which is not confirmed by the senses in combination with the ones that have been confirmed, you would be contaminating your judgement?
I feel bodies which are not myself: there are other existencies then. I call them matter. I feel them changing place. This gives me motion. Where there is an absence of matter, I call it void, or nothing, or immaterial space. On the basis of sensation, of matter and motion, we may erect the fabric of all the certainties we can have or need.