Two possible scenarios for the magnetic dip formation, subsequent coronal condensation, and supersonic downflows. The “+” and “−” signs denote the positive- and negative- polarity magnetic fields on the solar surface, and the solid lines represent magnetic field lines. Near the reconnection site (red explosive feature), four groups of field lines, “L1”, “L2”, “L3” and “L4”, are highlighted by green and blue solid lines. The gray arrows indicate the converging motion of existing loops to the reconnection site, while the red arrows mark the diverging motion of newly formed loops from the reconnection site. The brown shadowed regions represent coronal rain clumps. It should be noted that “L4” in the top panel and “L2” in the bottom panel may also exhibit coronal rain.