To see or carry luggage in your dream symbolises the many desires, worries, responsibilities or needs that you are carrying with you and weighing you down. The size or weight of the luggage parallels the demands you are facing. You need to reduce your desires and problems in order to alleviate the pressure you are putting on yourself. Perhaps you feel that you are being held back by past emotions or issues. Alternatively, luggage symbolises your identity and sense of security.
To dream that you lose your luggage represents a lost in your identity. Consider how you feel when you discovered that your luggage is lost. If it is a positive reaction, then it signifies an opportunity for you to start fresh. If your reaction is negative, then it suggest that you are feeling lost.