Mom, what a sacred word that reminds people of the greatest love and warmth in the world.But whenever I encounter this word in newspapers, books or TV, a complex feeling emerges in my heart, mixed with bitterness, sorrow, unwillingness, melancholy, and the urge to be indescribable in my youth.I was born in an ordinary family in a coastal city. I grew up like an ordinary person. I completed a boring but necessary higher education in a second-rate university in the city. Now I have just entered society and have a barely living job. I go back to the hut I rent every day. The most common thing I do is to recall the past.