Mama Kristi teaches on writing the vision and make it plain" is from the Old Testament book of Habakkuk, specifically verse 2:2. In this scripture, God commands the prophet Habakkuk to record a divine revelation on tablets so that it can be read and understood clearly.

The second part of your prompt, "upon the table," is a common modern interpretation of this biblical command, though it is not found in the original Hebrew text.
The phrase encourages the clear articulation of goals, purpose, or a divine calling so it can be easily understood and acted upon.
Biblical meaning of Habakkuk 2:2

In the original context, the command from the Lord had specific instructions for the prophet:

Write the vision: Habakkuk was to record a prophetic revelation of God's coming judgment against Babylon and Judah. Writing it down created a permanent record of the prophecy for all to see.

Make it plain on tablets: The message was to be inscribed clearly on public tablets. This ensured that the prophecy was not obscure or confusing, and that it was accessible to everyone, not just the prophet.