Mothers' Day returns again
Get out the paper and a pen
Or buy a card with pre-defined
Over-used words and cliched lines
'You're the best mum in all the world'
Reads the card from every boy and girl
It might be true, it likely is
To each respective her and him
But to write the words
By ones own hand
Is far greater than a card from a can
Whilst it is ambiguous what the author is implying in the abstract phrase 'a card in a can' it can be inferred that this is an allusion to modern Western society's tendency to prefer the quick fix over the sincere solution.