There is a lot of guilt that we all carry in our day to day lives. We want to be there for our loved ones, work on ourselves and contribute to the world. Sometimes something has to suffer, you have your priorities. I think we should focus on the quality of time that we are spending and giving, not on the quantity. When you are with your parents is your mind fully present or are you thinking of your other responsibilities? Do you make them smile, do you have deep conversation, do you give your undivided attention and support? There will always be a sense of guilt when we cannot give more time to a loved one, a cause or anything that is close to us. I believe that guilt is there because the love is there. Don’t be too hard on yourself. Reflect, evaluate, communicate and move on.