Explain these lin

After working efficiently for eighteen months, the author let his watch run down. The author tried to get his watch repaired seven times by different people. When the author had given the watch to be repaired for the second time, the author got his watch back after one week. Instead of getting adjusted to the right time, the watch slowed down which resulted in the author missing his appointments and the author felt like he was going into yesterday, going even more backwards into time, feeling lonely. The author kept going back into the past and staying there because of the wrong time shown by his watch. Mark Twain tries to relate his situation to that of a mummy from the past years and says that he could relate to and could befriend a mummy lying in a museum, eager to exchange news with him.