妙法蓮華經玄贊 8.425

8.425

贊曰：上辨因由，下明開塔。有四：一請，二答，三重請，四許開。此初也。

The Commentary says: Above, the cause and origin was discerned; below, the opening of the stūpa is explained. There are four parts: 1. request, 2. response, 3. repeated request, and 4. assent to opening. This is the first.