寂寞的滋味
[jì mò de zī wèi]
Taste of Loneliness. 'Loneliness' in Chinese culture is considered not only as an individual emotional reaction when feeling alone, but also as an important part of artistic conception, sometimes even representing wisdom from life experience and contemplation. 'The Taste of Loneliness' is likely describing a netizen's introspection into the feelings and thoughts one would experience during loneliness.