Each one of the Fab Four is a part of Dick’s heart.
Donna is Dick’s Suffering. Shes the kind caretaker of everyone but treated as a flaw of the universe. She’s the forgotten shadow of her twin, a immortal being that can’t find her identity and her past, as she dies, but her soul lives through eons mourning loved ones from and pieces of her heart lost.
Dick has lived through the entirety of DC history and watched everyone that loved him leave him and go into the black hole of the multiverse. He said he lived through borrowed time as he always lives in the memory of better times, better people. He’s always unsuccessfully looking for himself out of his mentor’s shadow.
Roy is Dick’s Joy. He is a free spirited fighter with happy wanderlust and mind and feet as quick as his hands. He stays honest and true to his instincts, and seems to not have any worries thanks to his escapism and a free worldview. He found a family not in romance or power, but where friends and children is.
And no matter what holds Dick back or brings Dick down, he stays optimistic and always taken great leaps of change. He thrives to be independent and true and follow his heart as much as his head, and happy when he can forgo the rules. He stays loving and forgiving to family and children.
Wally is Dick’s Pride. The greatest among speedsters, the most successful legacy character, he started from just a very normal childhood and background, but soon thanks to heart and guts has become his very own hero, in every way be better than his predecessor, his idol, his family who loves him very much.
What Dick achieved and where he comes from, what he sees as his values, is usually in conflict. His father is a heavy powerful figure both among people and heroes, that he’s happy to get along with , or in all honesty match. He always has to be the best and the most perfect, sometimes just because he is supposed to, but at large, that’s what he wants to.
And Garth? DC didn’t and would never show you this last one but Garth is his Grit. The abandoned child who has lived alone, fought alone, loved alone and thrived alone to the most power on his own, he’s full of responsibility and courage, honed by endless trials, pain and tribulations.
He showed what one has to give and sacrifice and fight, to be a hero. The price to pay for life and greatness, and what to do in a position of power and leadership, to serve and protect. That courage, that grit, is the definition of Dick’s character, made him strong whatever happens and worthy to be the most loved and respected by everyone.