Mourn if you must, but don't stop fighting.
And keep as few things as possible, so that you don't have to fear for them. Give them up without a struggle-because otherwise the humiliation will poison your heart. They will take them away from you in a fight, and trying to hold onto your property will only leave you with a bloodied mouth ... But by owning things and trembling about their fate aren't you forfeiting the rare opportunity of observing and understanding?
Religion itself cannot but be dynamic which is why "return" is an incorrect term. A return to the forms of religion which perhaps existed a couple of centuries ago is absolutely impossible. On the contrary, in order to combat modern materialistic mores, as religion must, to fight nihilism and egotism, religion must also develop, must be flexible in its forms, and it must have a correlation with the cultural forms of the epoch.
Once the fight is on-strike quickly and often.