To Mahayana Buddhists, the seventh lunar month is a month of joy. This is because the fifteenth day of the seventh month is often known as the Buddha's joyful day and the day of rejoice for monks. The origins of the Buddha's joyful day can be found in various scriptures. When the Buddha was alive, his disciples meditated in the forests of India during the rainy season of summer. Three months later, on the fifteen day of the seventh month, they would emerge from the forests to celebrate the completion of their meditation and report their progress to the Buddha.