There's the kind between family members. Those are loving, reassuring, welcoming and confirming.
There's are those between friends which are accepting, nurturing and full of continuity. These contain pieces of remembrance, comfort in the present and hope for the future. 
There's the soft kiss between partners which connects two hearts. It's a bond between souls. What's exchanged is more than biological, it becomes spiritual, life giving... penetrating.
There's the kiss of lovers, these contain the excitement, passion, desire, bonding and destiny that only two lovers can know.
There's the kiss of destiny which comprises all of the above.