Positive thinking (PT) is a method of health keeping and/or self-perfection. It consists of three main principles:
1. In situation of uncertainty, prefer the positive.
Example: you are walking in the street. Behind your back you hear laughter. You do not know the cause of it, so you ought to think that it is not about you.
2. Avoid the negative.
I.e., negative thoughts, images, words, deeds (both in output and in input).
3. Look for the positive.
I.e., make it your habbit to consciously seek the positive.
In my opinion, belief in an afterlife is a case in exercise of the PT. It is a typical situation of uncertainty: it is unknown if there is an immortal soul or not and, on the one side, aimless suffering is extemely negative and, on the other side, eternal life is extemely positive, so one ought to prefer the latter.
1. In situation of uncertainty, prefer the positive.
Example: you are walking in the street. Behind your back you hear laughter. You do not know the cause of it, so you ought to think that it is not about you.
2. Avoid the negative.
I.e., negative thoughts, images, words, deeds (both in output and in input).
3. Look for the positive.
I.e., make it your habbit to consciously seek the positive.
In my opinion, belief in an afterlife is a case in exercise of the PT. It is a typical situation of uncertainty: it is unknown if there is an immortal soul or not and, on the one side, aimless suffering is extemely negative and, on the other side, eternal life is extemely positive, so one ought to prefer the latter.