Additional terminology is always helpful for the learners of metaphysics. It is important to be able to know what certain words and phrases mean when spoken by a lecturer who is going to go into much more detail later on in the lecture. Some common words and phrases used by lecturers include: afterlife, third-eye, other side, aura, white light, coming through, life contract, presence, and soulmate. After a brief introduction to these words, one will begin to get familiar with the lingo which is constant in books, lectures, tapes, videos, and readings.
Descartes believes a lack of a belief in God will hinder the process of discovering truths that cannot be doubted. He says, Even so we shall not have met and answered the doubts suggested above regarding the reliability of our mental faculties; instead we shall have given mental force to them. For whatever way it be supposed that I have come to be what I am, whether by fate or by chance, or by a continual succession and connection of things, or by some other means, since to be deceived and to err is an imperfection, the likelihood of me being so imperfect as to be the constant victim of deception will be increased in proportion as the power to which they assign my origin is lessened. (Descartes, P. 90).