Jimin is usually referred to as the "angel" of the group. He speaks softly and eloquently, he moves fluidly and elegantly on stage and he is always emotionally in tune with his members. He is also very comfortable with higher notes when singing and will generally sing in a higher range than his members (all except Jin). Combining all these traits makes him seem quite angel-like, though there are many examples of behavior that does not fit inside of this box... For one he can be veery mischievous under the right circumstances and he has also been known to make blunt remarks. This is usually the case I've noticed, that when a person is described to be one thing in particular - he/she will usually also display the opposite trait. It may sound conflicting and paradoxical, but human's are in many ways very counter-intuitive in their behaviour. We often say one thing but then we do the opposite. It may also be a balance issue. If we are kind and sweet and polite to such an extend that we neglect ourselves in the process - then our emotional regulation might be slightly off balance, and thus blunt remarks or brutal honesty may occur as a way to restore balance.
But back to Jimin...
Who is indeed a very selfless guy. He is known to be very good at taking care of his member's emotional well-being: always the first one to comfort his brothers when they're crying, and also I believe the first one they tend to talk to about their personal struggles. Namjoon has mentioned more than once that he finds a lot of comfort through his talks with Jimin, who are also a deep thinker and feeler. And I think the same goes for Yoongi as far as I've gathered, who also struggles with overthinking. These two, Namjoon and Yoongi are especially analytical and reflective and combined with their strong emotional intelligence, they're VERY capable of making qualified decisions. But what Jimin has in spades that these two struggle with is a comfortable and intuitive display of his own emotional well-being. His entire body often displays how he feels not just his face or his words. The physical and emotional spheres overlap to such an extent that he becomes the emotion in that moment, and then another one in the next moment. You often find him (and j-hope) on the floor from laughter, and that's not an exaggerated response to a joke or a funny moment - but a genuine full-body reaction to feeling joyful. Yoongi and Namjoon more so belong to the types of people that are fully aware of how they feel, but are less able to express it outwardly - or they've been taught by society to keep their emotions in check, and they've practiced that to perfection. Meaning that you'd need to get to know them well, in order to learn their more subtle ways of expressing emotions. Or you'd have to wait for them to express their emotions through words, which they are both incredibly skilled at.
With Jimin on the other hand you are rarely in doubt, unless he is deliberately hiding it due to circumstance (usually formal public appearances) or out of a different kind of respect. This is also, I believe, why soooo many ARMYs (myself included) got into BTS through Jimin. As he's the easiest member to read emotionally, this also makes him the easiest member to relate to and emphasize with. And when you're an international ARMY who knows little about k-pop or the korean culture, which is how many of us started out - then you feel out of depth and will thus latch onto anything that feels even a little bit familiar or relatable, and that thing often is Park Jimin. And as soon as you realise that Jimin isn't just "a little bit relatable" but VERY much so, it's actually impossible to not take a liking to him. He is so incredibly endearing and human, that you'd have to be very broken to not be charmed by him and his aura.
He's also very smart, highly aware of social etiquette (to the extent that he will let you know, if you break them near him), an INCREDIBLY skilled dancer who will always belong on stage - the way he is able to tell stories through movement is truly enchanting, a beautifully skilled vocalist who still studies his craft, one of the hardest workers I know (he slept on a mattress in the dance practice room as a trainee out of sheer dedication) - and the silliest little bean you may come across :))
He also happens to turns 30 tomorrow !! HAPPY BIRTHDAY our chimchim !!
💜💜💜