Rolling at a set of pins is read as aiming at a goal and seeing what falls. The bowling alley also stands for easy company and friendly competition.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.