The INFJ archetype refers to the personality type as defined by the Myers-Briggs Type Indicator (MBTI). INFJ stands for Introverted, Intuitive, Feeling, and Judging. It is one of the sixteen personality types identified by the MBTI, and it is considered to be one of the rarest types, making up only about 1-2% of the population.

Here is a detailed description of the INFJ archetype:

1. Introverted (I): INFJs are primarily focused inward and gain energy from spending time alone. They tend to be reflective, introspective, and prefer solitary activities. They often need time alone to recharge and process their thoughts and emotions.

2. Intuitive (N): INFJs rely on their intuition and are more interested in abstract ideas and possibilities rather than concrete facts. They have a natural inclination to see patterns, connections, and underlying meanings in the world around them. They are future-oriented and enjoy contemplating the deeper meaning of life.

3. Feeling (F): INFJs make decisions based on their values and emotions rather than logic. They are empathetic, compassionate, and highly attuned to the emotions of others. They prioritize harmony and seek to understand and support the feelings of those around them. They are often driven by a strong sense of purpose and a desire to make a positive impact on the world.

4. Judging (J): INFJs prefer structure, organization, and planning. They like to have a clear sense of direction and tend to be decisive and determined. They value closure and prefer to have things settled rather than open-ended. They are often goal-oriented and strive for perfection in their work and relationships.

Overall, INFJs are known for their deep empathy, insightfulness, and their ability to understand and connect with others on a profound level. They are often described as "the counselor" or "the advocate" due to their strong desire to help and support others. They are highly intuitive and can often anticipate the needs and emotions of those around them. INFJs are also known for their creativity, idealism, and their ability to see the bigger picture. They are often driven by a strong sense of purpose and are motivated to make a positive difference in the world.