Dreams about building often symbolize personal growth, development, or the construction of one's identity. In this dream, your grandmother may represent wisdom, tradition, or familial connections. The act of trying to build with not enough bricks suggests feelings of inadequacy or limitations in your life, possibly related to your own ambitions or projects.

The mention of bricks coming from another country could indicate that you feel there are external resources or influences that are necessary for your growth or success but are currently out of reach. It may also suggest a longing for something beyond your immediate environment, whether it be knowledge, opportunities, or support.

Consider reflecting on areas in your life where you feel you lack resources or support. Are there ways you can seek out those external influences or assistance? This dream may be encouraging you to explore new avenues or connections that could help you build your aspirations more fully.