Happy Days is a play about living. A woman, though buried and locked in life, still strives for every opportunity to survive and make this life more meaningful. What matters is not what she can acquire in life, but rather, how she lives.
Though many people consider Beckett to be extremely pessimistic about human existence, Beckett never lets his characters sink into 'scorched earth' and give up their love of life. Winnie, throughout the entire play, does not only share her anger and frustration, memory and stories, but also her love, humour, warmth and longing for living.
At the end, as Winnie finally sings, she is celebrating having lived - and being able to share such a feeling with someone she loves and for whom she cares, her husband Willie.