Whatever may be the dictionary meaning of it but it’s beyond the explanation.
            It’s the relation more than your spouse, your best friend, your parents, your siblings or even your own children share with you.
             Soul mate is the one who knows you inside out thoroughly. You can not hide anything from him although he is not around with you. He is the one who knows your emotional state, your moods, your anger and knows how to control you.
             You carry that person with you, in your mind, everywhere you go. He will be the first thought when you wake up in the morning and the last one before you retire for bed.
             You never expect anything from him to be done for you, but be with you in your soul all the time to guide you, to love you and keep you in peace.
              Everybody finds his or her soul mate in their lives at certain time. What you have to do is just connect with your own soul mate and be a better person..