"I love you more than you know" is a heartfelt expression of affection and deep emotions towards someone. It indicates that the person speaking or writing this phrase feels a level of love that goes beyond what they can adequately express in words.
The statement carries a sense of hidden or overwhelming love. It suggests that the intensity of their feelings surpasses what the other person might comprehend or be aware of. It could be because the person expressing their love believes that their emotions are so profound that words alone cannot fully capture the extent of their affection.
In essence, "I love you more than you know" is a beautiful way of saying that the love is powerful, sincere, and perhaps even beyond the recipient's understanding, but it remains genuine and deeply felt. It conveys a message of love that comes from the heart and emphasizes the depth of emotions between two individuals.