Let us take a moment of the time just to pay tribute and show appreciation to the person called MOM though some may not say it openly to their mother. There"s no substitute for her. Cherish every single moment. Though at times she may not be the best of friends, she may not agree to our thoughts, she is still your mother!
Your mother will be there for you, to listen to your woes your pags your frustrations, etc. Ask yourself Have you put aside enough time for her, to listen to her "blues" of working in the kitchen, her tiredness?
Be tactful, loving and still show her due respect, though you may have a different view from hers. Once gone, only fond memories of the past and also regrets will be left.
Do not take for granted the things closest to your heart. Love her more than you love yourself. Life is meaningless without her.