the "thon talet thonlanmei" shows the seven layers of the royal palace in the kangla. it shows the gradual evolution of the mankind. according to the illustration, the mankind ascended from the lowest form to the highest form. the forms are (1) fish, (2) snake, (3) tortoise, (4) boar, (5) cow, (6) elephant and (7) man and finally taoroinai. taoroinai is shown as the ultimate form of life.