When did you guys really start to understand linear algebra? Like you understood why it worked and how it works instead of just "how." What did you read or do to get to that point. Reason why I'm asking is I got 4 weeks off and I'd really want to get better with linear algebra. I took one semester of it and all I did was computations with some proofs which were easy though. I learned out of David Lay's book but I feel that I don't understand why i'm doing things like vector spaces, basis, and linear transformations. To make my point more clear I don't see the bigger picture.