I request you to rectify only those mistakes which you are absolutely sure of.
The theory of Karma implies that every individual is (1) answerable to his actions, both good and bad. By this it is understood that (2) each one will have to face the consequences of all (3) deeds he performs — the rewards in the case of the former and the punishments in the case of the latter and this (4) is manifest as the joys and sorrows one experiences.
First I thought "answerable to" should be replaced with "answerable for". But is it really necessary?
Is the usage "each one" correct? I think it should be replaced with "everybody" or should be just "each".
Is "deeds" okay or should it be "the deeds"? Because we're talking about deeds of a particular person.
"these manifest" or "are manifested" or something else? Which is correct and why?
Is there any other grammatical mistake in the passage? Please bring it to light. Thanks!