More information about the fountain (source):
Placed around a circular fountain the four seated American Indian women represent an Osage chant of thanksgiving. The four women face north, south, east and west, each demonstrating a line of the prayer: The first women is planting the seed, “Lo, I come to the tender planting.” The second bends close to the earth, “Lo, a tender shoot breaks forth.” The third holds a harvest basket of maize, “Lo, I collect the golden harvest." The forth nurses her newborn baby, “Lo, there is joy in my house.” These four sculptures are carved from bedford limestone and are placed around a circular base of terra cotta which is sculpted with a corn relief. Artist Christian Petersen took these notes during the sculpture's early stages:
Full water display symbolizes the fullness of the elements . . . arch of the sky . . . the lifegiving rains . . . the calmness of the Indians in the face of the turbulence. . . tranquil water . . . tranquility of the Indians. . . much water symbolizes elemental turbulence.