Answer: (For why) Will man lament the state he should envy? / To have so soon 'scaped world's and flesh's rage, / And if no other misery, yet age !
Step-by-step explanation: From the context, we can guess that the state that man laments but "should envy" is death at a very young age, before having to suffer the evils of the world and the decay of the body (world's and flesh's rage).