You need to see the motivation for the social service. Honestly look at yourself in the face. What do you want by doing the service?
Do you feel motivated by the fear of having to go to hell if you don’t do good deeds? Is it the desire for a good name and publicity? Or is it just to do something to keep yourself busy? Is it the greed of a good afterlife after death? Is it a better next birth?
If you are driven by fear or greed, you can never intensely enjoy doing the service. One part of you will be doing the act of service. Another part of you will be caught in thinking about the benefits of the service. So you are not integrated in that action. You are not completely fulfilled through it.
This action also binds. Outwardly, socially, it looks good and free from bondage. But inside your inner space, you can see it is not. The whole of mankind is swinging around result-oriented action. This is extended to service as well. At least in service, do not think of dollars or fame. Do not plan to impress. Do not plan to make your presence felt.
Do the work for the work itself! Do not plan anything. Just do any service anywhere. This kind of service will infuse tremendous power into your being. For at least half an hour a day do something selfless, without any thought of results or benefits for yourself. You can then experience the true joy of service.
Karma can be exhausted only through deep understanding, awareness and at least one glimpse of consciousness.
source: Living Enlightenment