Dreaming of twin babies, a boy and a girl, can represent the duality and balance in your life. The fact that they were sleeping in bed with you suggests that you are feeling a strong connection and bond with these aspects of yourself. The boy getting out of the bed may symbolize a desire for independence or a need to explore your masculine side. However, the fact that the girl grabbed your arm and you reassured her that you were not leaving her suggests that you are also aware of the importance of maintaining balance and not neglecting your feminine side. The disappearance of the boy when you went to pick him up could represent a fear of losing this balance or a fear of change. It could also symbolize a need to let go of old patterns or beliefs that are no longer serving you. Overall, this dream may be a reminder to embrace both your masculine and feminine energies and to find a harmonious balance between them in order to achieve inner peace and fulfillment.