Introverted Sensing (Si)

Introverted Sensing (Si) is about storing and recalling detailed sensory memories, then using them to evaluate the present. Si users compare current situations to past experiences, creating a rich internal library of "how things should be."

Si is the dominant function for ISTJ and ISFJ types — two of the most common personality types. Si users value tradition, consistency, and proven methods. They have excellent memories for details and notice when something differs from how it was before.

In careers, Si-dominant people excel in accounting, administration, healthcare, quality assurance, and any role requiring reliability, attention to detail, and institutional knowledge.