The song Be Thou By My Side by Holy Hive talks about the unconditional love between two people and the desire to be together. The lyrics suggest that actions speak louder than words and that love is not just about saying it, but proving it through one's intentions. The singer talks about living a life like a beggar, but loving the other person like a king. The past joys are just memories, and the present situation may not be ideal, but the desire to be with the loved one is strong. The lyrics also reference a Biblical verse, asking for the presence of God to be with them and bring peace to their hearts. The repetition of "I'll be your lover" emphasizes the commitment and dedication of the singer to the other person. Overall, the song is a beautiful representation of the power of love, the importance of actions over words, and the desire to be together no matter what the circumstances may be.