Bear ye one another's burdens, and so fulfil the law of Christ.
Note 4 at Ga 6:2: The Greek word "BAROS," translated "burden" here, means "heaviness, weight, burden, trouble" (Thayer's Greek-English Lexicon). It is such a heavy weight that if a person is not helped in carrying it, he or she will be overwhelmed. This may be either a sin (Ga 6:1) or a circumstance of life.
We fulfill Christ's law of love when we bear one another's burdens. Our love must go beyond just not seeing others hurt to the alleviation of their suffering if it is within our power.