This question seems to be incomplete. However, there is enough information to find the right answer.
Answer:
When Mawi saw one of his co-workers helping an old woman to type a letter after everyone else had refused, he understood that his mother had meant that we are all part of a human community and therefore we must help each other.
Step-by-step explanation:
In his speech titled “Of Snakes, Butterflies, and Small Acts of Kindness," Mawi Asgedom explains that it took him some time to understand what his mother had meant when she told him "Always remember where you came from." It was his co-worker´s small act of kindness that allowed him to understand his mother´s intent when giving him that advice.