。
The dream came true.
Literal
Dream [topic-は] was-fulfilled.
叶う ('to come true, to be fulfilled' — of dreams, wishes) is the specific verb for wish-fulfillment. Past form 叶った. Japanese has multiple verbs for this concept: 実現する (formal 'become real'), 本当になる ('become true'), and 叶う (specifically for wishes and dreams).