Axes: Fe–Ti / Fi–Te / Ne–Si / Ni–Se

Axes are pairs of judging or perceiving functions that always occur together within either the conscious or unconscious section of a type. They contain one function of each orientation and activity process:

Fe–Ti : external feeling / internal thinking
Fi–Te : internal feeling / external thinking
Ne–Si : external intuition / internal sensing
Ni–Se : internal intuition / external sensing

Within a type the two functions of each judging and perceiving axis are either adjacent (positions 2 and 3 / 6 and 7) or bookend a second axis of the opposite activity (positions 1 and 4, 5 and 8). Perceiving axes bookend judging axes and judging axes bookend perceiving axes like so: PJJP or JPPJ, to create one of two activity rhythms.

Whether an axis is adjacent or bookend strongly influences it’s use. Bookend axes favor the function at the dominant pole which can almost be separated in use from it’s second, whereas adjacent axes are more balanced, less strongly favoring the more dominant function, and the use of one function means the simultaneous use of the other.

The Perceiving Axes

N-Polar S-Polar
The
Ni
Se
Axis
Ni–Se Se–Ni
Ni1—Se4
INFJ
INTJ
Ni2—Se3
ENFJ
ENTJ
Se1—Ni4
ESFP
ESTP
Se2—Ni3
ISFP
ISTP
Ni predominant largely disjointed and independent from Se
Se used inconsistently as needed by Ni
weak Se influence on Ni
Ni and Se linked and used in tandem
roughly balanced with Ni emphasis
strongly influence each other
Se predominant largely disjointed and independent from Ni
Ni used inconsistently as needed by Se
weak Ni influence on Se
Se and Ni linked always used in tandem
roughly balanced with Se emphasis
strongly influence each other
The
Ne
Si
Axis
Ne–Si Si–Ne
Ne1—Si4
ENFP
ENTP
Ne2—Si3
INFP
INTP
Si1—Ne4
ISFJ
ISTJ
Si2—Ne3
ESFJ
ESTJ
Ne predominant largely disjointed and independent from Si
Si used inconsistently as needed by Ne
weak Si influence on Ne
Ne and Se linked and used in tandem
roughly balanced with Ne emphasis
strongly influence each other
Si predominant largely disjointed and independent from Ne
Ne used inconsistently as needed by Si
weak Ne influence on Si
Si and Ne linked and used in tandem
roughly balanced with Si emphasis
strongly influence each other

The Judging Axes

F-Polar T-Polar
The
Fi
Te
Axis
Fi–Te Te–Fi
Fi1—Te4
INFP
ISFP
Fi2—Te3
ENFP
ESFP
Te1—Fi4
ENTJ
ESTJ
Te2—Fi3
INTJ
ISTJ
Fi predominant largely disjointed and independent from Te
Te used inconsistently as needed by Fi
weak Te influence on Fi
Fi and Te linked and used in tandem
roughly balanced with Fi emphasis
strongly influence each other
Te predominant largely disjointed and independent from Fi
Fi used inconsistently as needed by Te
weak Fi influence on Te
Te and Fi linked and used in tandem
roughly balanced with Te emphasis
strongly influence each other
The
Fe
Ti
Axis
Fe–Ti Ti–Fe
Fe1—Ti4
ENFJ
ESFJ
Fe2—Ti3
INFJ
ISFJ
Ti1—Fe4
INTP
ISTP
Ti2—Fe3
ENTP
ESTP
Fe predominant largely disjointed and independent from Ti
Ti used inconsistently as needed by Fe
weak Ti influence on Fe
Fe and Ti linked and used in tandem
roughly balanced with Fe emphasis
strongly influence each other
Ti predominant largely disjointed and independent from Fe
Fe used inconsistently as needed by Ti
weak Fe influence on Ti
Ti and Fe linked and used in tandem
roughly balanced with Ti emphasis
strongly influence each other