溢 is often used figuratively: 洋溢 (yángyì — to be brimming with), 溢满 (yìmǎn — overflowing with). The radical 氵(water) hints at its literal meaning of liquid overflowing.
memory
The water radical (氵) on the left + 益 (benefit/overflow) on the right — water that goes beyond its container.
