Dreams about visiting amusement parks, like Disneyland, often symbolize a desire for joy, adventure, and a break from routine. The presence of your wife and brother suggests that family and close relationships play a significant role in your sense of happiness and fulfillment.

Finding the aisle with Japanese-themed snacks could represent your appreciation for different cultures or nostalgia for childhood experiences. The fact that you thought of your brother and wanted to share these items with him indicates a caring side and a desire to connect with loved ones through shared interests or experiences.

Your brother's indifference to the items might reflect your concern about being able to connect with him or provide joy. Despite this, his good mood indicates that your relationship is solid and that shared experiences matter more than specific interests.

The life-sized model train attraction symbolizes a journey or adventure, perhaps related to your own life path. The wait for the next attraction can signify anticipation or patience in your current life situation. The humorous moment with the motivational poster suggests that you have a lighthearted approach to life, even when things don’t make perfect sense.

Overall, this dream may encourage you to appreciate the small joys in life, cherish your relationships, and maintain a sense of humor in the face of life's complexities. It could also be a reminder to focus on shared experiences rather than specific expectations.