What the author means by "candid world" is that there would be an honest, sincere place without any bias or prejudices. The author wanted to pass on a sense of freedom, authenticity and honesty, he wanted people to see that place as the place where everyone was free to be and to do what each one wanted because they would not suffer trials or impediments.
"Candid" is an adjective that means "frank," "sincere," "impartial," etc. For this reason, we can arrive at a conclusion about what the author meant by the expression "candid world"
