The phrase "has all oneself" refers to a person who possesses all the necessary skills, abilities, and resources to accomplish something on their own. Synonyms for this phrase include self-sufficient, independent, self-reliant, resourceful, competent, capable, and self-contained. These words describe a person who is confident in their abilities and can take care of their own needs without relying on others. Someone who has all oneself is a powerful force to be reckoned with and can achieve great things. Being self-sufficient is an important trait to have in today's world, where independence and self-reliance are highly valued.