The SiFe, when engaging their Fe more actively, will manifest what we might call a parental disposition. This disposition exists independent of the SiFe’s literal possession of children. It is instead a natural result of Fe being a subordinate process to Si. As the Fe-Ti pair comprises this type’s secondary oscillation, pursuits of Fe socialization always occur within the context of their worldview’s overarching sense.
What results is an Fe that manifests and articulates through a series of lessons and paradigms; the SiFe will counsel others on what has or hasn’t worked for them in the past and make this an inherent part of their conversation.
Cognitive Type, ch. 17.3
The SiFe has this ability to be temperate and (when at the highest levels of development) also very philosophical, intelligibly prudent and morally preserving. Whereas other intellectuals (Ti-leads perhaps) might do away with aspects of the archaic human mind, or our attachment to the body-- to nature and existence-- the SiFe grounds the soul into what matters to the human experience.
In this way the SiFe is exactly like the NiFe, although the NiFe may be a bit more prone to think in timeless terms, while the SiFe often believes the same general concepts but through contemporary examples and wisdom. A few such SiFe I've come across are Thomas Moore and Iain McGilchrist.
(I find these two do an excellent job of stepping a little outside the typical perception of the SiFe)
Like the NiFe Grandfather, this type of SiFe carries the same parental energy. Personally, it really makes me feel relaxed, welcome and appreciated simply for being here and being a human being.