The phrase "knock on the doors of your heart" conjures an image of someone gently seeking entry into the emotional world of their partner. It symbolizes the act of reaching out to connect on a deeper level.
The intention behind the act is to "make sure I still live there," which implies a desire for affirmation and confirmation of one's place in the other person's heart and life. It reflects a need for reassurance that the emotional connection remains strong and enduring.
In essence, this statement beautifully captures the sentiment of wanting to be certain of one's place in someone's heart and life. It conveys the importance of emotional connection and the desire to maintain a sense of belonging and closeness within the relationship.