It's a poetic and philosophical question, suggesting that the speaker is struggling to find the right words to describe the overwhelming feeling of love. It could be interpreted as:
* A search for the perfect word: The speaker may be seeking a word that captures the essence of love more accurately than the usual terms.
* A reflection on the nature of love: The question could also be a contemplation on the abstract and complex nature of love itself.
* An expression of deep affection: It could be a way of expressing the intensity of the speaker's love for someone, where words seem inadequate.
Overall, it's a beautiful and evocative phrase that speaks to the power and mystery of love.