tat-tat-pada-pradhanye 'atmarama' milana
astadasa artha kaila abhipraya lana
tat-tat-pada—all those items; pradhanye—principally; atmarama—the word atmarama; milana—causing to meet; astadasa—eighteen; artha—meanings; kaila—did; abhipraya—purpose; lana—accepting.
Lord Caitanya Mahaprabhu took each word specifically and combined it with the word "atmarama." He thus explained the word "atmarama" in eighteen different ways.
Link to this page: https://prabhupadabooks.com/cc/madhya/6/195