Donate blood and be the reason for someone’s existence” as a donor I think it’s the best way to thank God and nature to pay credibility for your life.
Donating blood is actually a picture of what Jesus did for me when He shed His blood so that I might live. When I give blood, I am offering a part of my life to save the life of someone else. It is one way I obey the second greatest commandment, which is to love others as we love ourselves