How do you use your mobilizing function?
Here's what I think: When types use their mobilizing function, it's never differentiated as it would be for someone who has it as their primary function. An INFj using Si is a lot different, not only in confidence or fluency and such, from an ISTp using Si. When the former uses Si as their mobilizing function, it is heavily biased towards Fi. It is not pure perception/sensation. There's almost always feeling-value attached to it. Conversely when an ISTp uses Fi, it is biased towards Si, when an INTj uses Si, it is biased towards Ti, and so on.
This creates a common middling-ground between activity relations, with two common dichotomies.
ISTp/INFj: Si+Fi (Involved Field)
ISFp/INTj: Si+Ti (External Field)
INFp/ISTj: Ni+Ti (Abstract Field)
INTp/ISFj: Ni+Fi (Internal Field)
And likewise for extroverted types.
ENTp/ESFj: Ne+Fe (Internal Object)
ESTp/ENFj: Se+Fe (Involved Object)
ESFp/ENTj: Se+Te (External Object)
ENFp/ESTj: Ne+Te (Abstract Object)
I can only theoretically assume how this manifests in other types, so I'm looking for opinions and first-hand accounts of how guys perceive your relationship with your mobilizing function.
How Involved Field (Fi+Si) manifests, in my experience: there's a coalescence of the physical stimulus and personal value and it flows together to form a visceral emotional response. One becomes part of their environment completely. There's a scene in the movie Into the Wild, where the protagonist watches the sunset and is so overcome by emotion that he gets tears in his eyes. That scene, I think, succinctly represents what I mean.
(I couldn't find the actual scene but here's a screenshot: )
Like stargazing and feeling myself become one with my environment, simply lying on the grass and taking in every sensation, but it's not purely perception; there's an emotional and value-based core to it.
I'm curious what others think of this.