This quote means that everyone needs four important things in life to be happy and successful. Firstly, everyone needs a purpose or something to do in life. This can be a job, a hobby or a goal. It doesn’t matter what age someone is or what their abilities are. Secondly, everyone needs a special person to love. This could be a spouse, a family member or a friend. Thirdly, everyone needs something to look forward to or hope for. This could be a life goal such as building a house or getting an education or it could be something simpler like a holiday or a special event. Finally, everyone needs someone to believe in. This could be a close friend or a religious leader who can help guide and encourage them in their life journey.