This is the RYI Dictionary content as presented on the site http://rywiki.tsadra.org/, which is being changed fundamentally and will become hard to use within the GoldenDict application. If you are using GoldenDict, please either download and import the rydic2003 file from DigitalTibetan (WayBack Machine version as the site was shut down in November 2021).
Or go directly to http://rywiki.tsadra.org/ for more upcoming features.
the heart of the teaching, essence of text, main substance of doctrine [JV]
the heart / essence of the teachings [RY]
1) essential pith of the teachings; 2) emptiness and bodhicitta; 3) essence/ heart of dharma [IW]