1)Imperfect senses.
2)The tendency to commit mistakes.
3)The tendency to cheat.
4)The tendency to be illusioned (be ignorant).
Our intelligence is imperfect. This is an unquestionable fact. Anyone based on intelligence can understand only part of the truth. One-sided perception of the truth cannot fully reflect it all and so a person based on own intelligence cannot make right decisions. We draw the special attention to intelligence as intelligence is the principal sense. The intelligence can be said to be the reservoir of our beliefs. The system of values available by it has spurs on to one or another action. As for other senses, the Aryans specify the two following levels of them:
1)Gross senses: the eyes (vision), nose (smell), ears (sound), tongue (taste), skin (touch). These five are called sense perceptions. There are also working senses: hands, legs, anus and genitals.
2)Subtle senses: mind, intelligence, false-self (“false ego”).
Gross senses serve to form perceptions of the material world and of objects of sensory pleasures which exist there. Gross senses do not qualify the information. They are just its indifferent conductors. This is evidenced by the fact that the same information has got a different value for different beings. For instance, a pig finds feces tasteful but for a human it is something disgusting. It means that acceptability of the information does not depend on senses but on preferences of the certain personality, therefore subtle senses are of more crucial significance.
Mind. Mind has got five functions: to desire (want, do not want) (1), to feel (2), to think (3), to plan (4), to regret (5). A person communicates with the external world with these functions. The first and deciding function is to desire. Mind causes sense organs to contact with one or another material object according to its desires. To fulfill its desires, mind starts planning (dreaming). If plans (dreams) fail, it regrets or grieves. Grieving, therefore, is the function of the past, desiring is of the present and planning is of the future. Senses executing orders of mind contact with certain objects of the material world. Mind decides to what extent this object meets its desires. When mind has made its choice, the game is started by intelligence which is the most important element.