If I were to ask a group of people what the definition of life is, there would be a variety of answers. All the answers may be right, depending on the individual perspective. How we see things from where we are standing has much emphasis on how we define life. It is realistic to say that life has many meanings.
Whatever your definition of life is, the fact remains that life is fleeting and fragile. One minute it can be here and the next, gone. Life is for the moment, for now. I encourage you to make the most of your time with those you love. Cherish the moments for they will soon be your memories.