If you are donating blood or funds in some sort of charity in order to get rewards during your quotafter deathquot scenario, then honestly to say, you are greedy enough trying to keep your sins at minimal level, which is not so. Instead, Donate things to make people happy. This will definitely energize your spirit and keep your negativity at bay. Hell and Heaven is just a human made concept, which, I believe, exists here on earth itself. If you are living a beggers39 life, then its a Hell for you. If you have a perfect life both personally and professionally, then you are definitely leading a life like in Heaven.