儿子在时乐满堂，
儿子离家空留床。
床上单被无叠褶，
三月不回思段肠。
春季竟不回，
酷暑也不在。
瑞雪撒落时，
吾儿尽归来.
Every parents would miss their children when they leave home for education in far away places; parents long for children's resturn, enjoy their company, and even occasional we-chat! This is what is called parenting.
