Dreaming of old classmates is a good omen as per dream interpretation and meaning. Dream of old classmates mean you will meet people which will revive old memories. It is also a kind of warning about ill health or mental problems or loneliness. It is asking you to come out of it by being positive.
Old classmates come in dream as well wishers and they might be asking you to be careful about something that is happening in your life. They also come to warn you against dangers.
Dreams of old classmates and you are not seen in the dream means you might forget or miss out on an important event.
Dreaming of old classmates also means it is time to correct the mistakes of the past. So, that you can have a better future. It is asking you to go back in life and apologize and mend things.
Dreaming of playing with old classmates means there will be happiness and change of luck in near future.
Always note that the dream should happen naturally and it should not be extension of what has happened on the day. Dreams that happen without any influence of the activities of daytime have great significance and meaning. Such dreams should not be ignored.