Let's concoct perfected definitions of the functions to build a common consensus as to what each function entails, and I expect these definitions will be subjected to much debate and much editing, but how can one build the general opinion without quarrels?
Anyhow, I'll begin with my understanding of the Socionics IM elements, and others can voice their disapproval or approval to further the refinement of these sometimes misunderstood functions close to their true definitions.
The Sensing Functions (the other functions will come soon, feel free to beat me to them) -
- As an extroverted perception function, Se sees the immediate power and use of objects in the environment through what could best be described as instinct. When confronted with a path that forks, Se types immediately seem to choose the path to venture based solely on gut feelings, or momentary hunches, characterizing the Se lead irrational types with a brand of impulsiveness when it comes to decision making. Furthermore, since Se alerts the ego of the momentary power of resources in the environment, Se types tend to know what they can achieve realistically with the resources they have in front of them. Due to this focus on achievement via tangible resources, Socionics tends to brand this function with words relating to conquest, as Se users would logically want to gather as many resources as they can possibly accumulate so that they can, through the realism of Se, achieve more (directly proportional relation between external resources and achievement). It is also important to note that while Se can easily be confuse with Te (just look at the massive amounts of SLE and LIE mistypes between both types), Se is a static function, and sees the power in objects at one specific point in time, juxtaposing the dynamic Te's perspective of the power of objects over time but not in specific instances.
- As an introverted perception function, Si sees the intrinsic power and abilities of ones' self, and is often characterized by self-discipline*, taking care of oneself, and knowing what ones' preferences are in life consciously and immediately. Like Se, it offers a realistic perspective of properties, and since it is an introverted perception function, can easily be characterized as the ability to see how far one can go in one's physical or mental state, and this is why the Si irrational type acts depending on their mood, for it is drawing the realistic power from an internal perspective, and thus Si types will be comfortable doing things that they feel "suit" them rather than things that will make them uncomfortable. With the introverted perspective, the power seen in ones' self will be more subjective than the relation the Se type has with the external environment and its power, and is therefore subjected to more "under-valuing" or "over-valuing" of the power of oneself. Some Si types, for instance, may feel as though they are not able to achieve certain things due to how they view their own power (usually lack of power in this instance), while others may feel that they can achieve many things due to how they view their own power (usually abundance of power in this instance). The Si type is therefore characterized by their his of his own entity, his physical and mental limitations (intrinsic of the self), just as the Se type is characterized by his view of his resources on hand, the limitations of his own resources. It is also important to note that the Si type is very adamant about his preferences, due to the fact that they are based around the power invested in his own judgement. These types; therefore, know exactly what physical experiences they like or dislike immediately (true of Si in the first four conscious functions, if Si is in the latter 4 unconscious functions, it is characterized by either a bafflement of one's own preferences (Super Id block) or a lack of care regarding one's own preferences (Id block)).
*Socionics's original foundation has corrupted the Si type to be seen as "self-acceptingly lazy" in the SxI due to the fact that external standards drawn from the environment (Je) forced SxIs to embody their community values, which, in the Soviet Union, were of conformity and equality, that everyone had just as equal potential as anybody else. Therefore, it is no wonder that these types were characterized by inactivity due to the fact that their view of themselves was corrupted by society's standards that had been hammered into their minds all of their life, meaning that their attention would primarily be focused on surviving, finding a family, and indulging in momentary pleasures rather than achieving their actual, probable, potential which were seen as equal to everyone else by the Ego due to Si perspective.