ISTJ (introversion, sensing, thinking, judging) folks tend to be very organized and logical, and thus are happiest with a partner who values the same things. "Loyalty, respect, and logical processing of ideas is the primary appreciation of these two," the Spencers say. "Minds and hearts think and feel as one. Their middle letters are mutually supported and that influences the successful love relationship they share."

Which is something important to keep in mind, when looking at these soulmate pairings. Even though these types are opposites in that one is introverted and the other is extroverted, it's those middle letters — essentially their core values of sensing and thinking — that really matter.

So, for example, if your partner is super social while you prefer chilling at home, it'll still be possible to get along and be happy as long as you see eye-to-eye with things like sensing and intuition, or thinking and feeling.

For ISFJ (introversion, sensing, feeling, judging), the best soulmate pairing tends to be an ESFJ (extroversion, sensing, feeling, judging). And again, it's all because of those middle letter pairings.

"These two pairs are committed to long-lasting love," the Spencers say. "The ISFJ may not be as comfortable expressing their innermost thoughts, but the pairing with the trusted ESFJ is ideal for sharing heart-felt communication."

In this case, these types share essential core values. And the fact that one is introverted and the other is extroverted actually helps bring them together.

INFJs (introversion, intuition, feeling, judging) are happiest with ENTPs, (extroversion, intuition, thinking, and perceiving) since they're both "big givers and they are very oriented to each others needs," the Spencers say. "Although the INFJ gets their energy internally and the ESFJ externally, the two are well-suited because their intuitions (souls) are beautifully aligned."

The INTJ (introversion, intuition, thinking, judging) and ENFP (extroversion, intuition, feeling, and perceiving) "pairing is soulmate-worthy because they both are guided by strong intuition and are excited by thousands of possibilities," the Spencers say. "These two balance one another: the INTJ helps the ENFP anchor those amazing ideas and put them into play." These two are also down to curl up and have a heart-to-heart, since they both "cherish deep introspective conversations."

For ISTP (introversion, sensing, thinking, perceiving), and ESTJ (extroversion, sensing, thinking, perceiving) type will make a great match. "This Myers-Briggs twosome has soulmate communication down to an art form," the Spencers say. "They connect on levels that others dream of."

Here's why: "Their same 'heart' letters of ST keep them on the same wavelength," the Spencers say. "The ISTP easily relinquishes much of the decision making to the uber-organized ESTJ, allowing the ISTP to return the favor by suggesting an out-of-the-ordinary date or spontaneous getaway."

ISFP (introversion, sensing, feeling, perceiving) is most likely to fall madly in love with ENFJs (extroversion, intuition, feeling, judging) and/or ESFJs (extroversion, sensing, feeling, judging). As the Spencers say, "The ISFP and either of these two makes for 'soulmatedness.' All are very relationship-oriented, making their primary relationships central in their minds and hearts. While these super warm people may be good conflict-avoiders, harmony is their middle name." Hence all those Fs for "feelings."

An INFP (introversion, intuition, feeling, perceiving) will likely be super happy with another "N" type, such as an ENTJ (extroversion, intuition, thinking, judging). "Intuition is the driver of this pairing and serves this soulmate couple well," the Spencers say.

Plus, being with an extrovert really can help an INFP open up and become more adventurous. "The ENTJ compliments the quieter INFP, yet still waters run deep with the INFP who is happy to try new things. Once this soulmate couple is attached, their devotedness to one another is forever."

An INTP (introversion, intuition, thinking, perceiving) should be on the lookout for an ENTJ (extroversion, intuition, thinking, judging), since they'll be all about those core NT letters. "These intuition and thinking types have hearts and minds full of compassion and thought-provoking perception," the Spencers say. "Their mutual understanding of each other is so keen that they pretty much can read each other’s thoughts and hearts." Pretty cute, right?

An ESFP (extroversion, sensing, feeling, perceiving) may find love with an ISFJ (introversion, sensing, feeling, judging), due to how well these types balance each other out. "Warm and loving, they like to balance ISFJ’s laid back preferences with ESFP’s friendly practicality," the Spencers say. "Although both conflict avoiders, they do appreciate when things are communicated openly and honestly to one another."

The thing to keep in mind, though, is that it's really up to you to decide who you are, and which type of person you'll be most happy with, regardless of your Myers-Briggs type. "Most all types can be soulmate material, as long as the couple understands their own MBTI preferences and those of their partner," the Spencers say.

That said, "couples who share the same MBTI preferences are also star-aligned; they truly get one another on a deep level." So if you want to take the pairings listed above into account, you may very well find your best match.