(Thaqalan). These are the jinn and mankind, for whom the Scales were established, in order that they may not exceed the balance. "And He has set up the Balance (of Justice) in order that you may not transgress (due) balance" ( 55:7-8). 'The two weighty ones' have been given free choice and this freedom has a direct effect upon their ultimate and eternal condition. Either felicity or wretchedness result from it. Every existent thing, except the two weighty ones, has a known station. Al thaqalan are required to struggle and exert themselves in order to acquire knowledge.