What does it mean when the DRL from front panel is flashing ina Honda Civic LX 2002 especially you start car?

DRL - Daytime Running Lamp. If the check engine light is not blinking at the same time, your parking- or headlights may have been left on for an extended period when your Civic sat turned off.

This has resulted in a partial depletion of your Civic's battery, and its charging system is attempting to re-energize it (which results in the DRL blinking) - as it attempts to balance electrical loads during vehicle operation when you start car

If the issue appears and resolves without further incident (that is, DRL blinks for approximately a minute once and stops), this situation typically clears itself automatically after continued normal operation of civic without further battery drain events