When you strongly believe in the Last Day, the way of your thinking will extremely change. When you believe in the Last Day, your happiness will be in giving, not in taking, because by giving you seek Allah's satisfaction and becoming elevated in a Paradise as wide as the earth and the heavens. Also, when you believe in the Last Day, you will count to one billion before doing harm even to a cat. Moreover, believing in the Last day makes you seek righteous deeds, look for a job by which you serve people and do whatever pleases Allah the Almighty. Believing in the Last Day, makes you dedicate your time, money, effort, break, naptime, thoughts, sayings and deeds to Allah's sake. On the other hand, when you do not believe in the Last Day, you use other's effort to your advantage, destroy them to make a living and wish to live, eat and enjoy your life alone.