Gunn said the first movie was about the mother, the second about the father and the third about the self. And if I think about it, all characters finally come to terms to who they really are or want to be:
[SPOILERS]
• Mantis goes her own way, after following what Ego wanted and then what the Guardians wanted for all these years;
• Drax, that called himself the 'destroyer', finds his place as a 'father', even after his daughter's death;
• Groot: now that he is an adult again, it's pretty clear to us that he's phisically and mentally different from the GOTG1!Groot. He respects and supports everyone's choices in his family and makes us part of it too at the end (→ now we understand him too);
• Nebula, now free from Thanos, is now a leader and helps kids in need like she was as a child, following what she and Gamora talked about at the end of vol 2;
• Gamora learns why her 2018!self found a family between the Guardians, but feels she's different and chooses another path in the end;
• Rocket "ain't no one like me but me" accepts he's not alone in the world anymore and deserves to keep on living. Also, he calls himself "racoon" for the first time without it being a offense for him;
• Peter, always away from his planet, faces his fears and comes back to the Earth, where he lost his mother, and meets his granddad.
I don't like all the choices Gunn made in this movie (about Gamora's arc for example), but GOTG3 made me cry and laught and cry again and I'm happy we finally got to see the ending of this beautiful trilogy.
