I'm sorry! There is no idiom matching Dong X Liang X for the time being.
The pillar of architecture is a metaphor for talents who shoulder the heavy responsibility of the country.
Great men are pillars. For example, a talented person can shoulder the heavy responsibility of the country and is the pillar of talents.
Pillar of the country: the beam supporting the housing frame. Here is a metaphor for a great responsibility or role. A man shouldering the heavy responsibility of the country.
Talented people are compared to people who can do great things.
Material construction of pillars: purlins and beams on the roof. Wood that can be used as a house beam. Metaphor can bear the heavy responsibility of the country.
Pillar construction: the main beam of the house; Crossbeam: a crossbar installed on a wall or post to support a roof. Metaphor can bear the heavy responsibility of the country.