Serena's song "A Mi Lado" is about the bond of friendship and support between two friends. The lyrics talk about being there for each other through thick and thin, even when times get tough and things seem to be falling apart. The song emphasizes the importance of having someone by your side who you can rely on and trust no matter what. The song talks about how even when the world is against you, your friend will always be there to talk to you, believe in you, and support you. It encourages the listener to let go of hate and resentment, and instead hold onto the memories and experiences shared with a true friend. The chorus of the song repeats the message that no matter what happens, the friendship and support between the two friends will always be there, helping them to keep moving forward and facing life's challenges together. Overall, "A Mi Lado" is a song about the power of friendship, loyalty, and love, and the comfort of knowing that you always have someone there for you no matter what.