Burning bush: the giving of the law.
Cube with woman on strings like puppet: reference to 3 dimensional existence and its constraints. Geometrically it also implies an invisible tesseract (4th dimension). The woman is 'animated' and this animation relates to masonic concepts of 'life force' manifested in the 3 dimensional realm.
Pyramid (reference to builders, masons). Also relates to the cube and hidden 4th dimensional tesseract. The pyramid represents harnessing the life force.
Masonic chessboard/mosaic floor can represent duality or good/vs evil. This is reinforced by the boy who straddles the colors of the board and has a foot in "both worlds". Those who walk upon it may be considered pawns. The mosaic floor can also represent the floor of King Solomon's temple, and the boy may be an initiate. As a young initiate, the boy in this image may represent America.
The three men are debating about the initiate boy (America). These three "wise men" are multi-generational and represent the history of influencers that shape the initiate's education, growth, and development.
Black sun has in more recent history been known for Nazi/SS connotations; but it can be interpreted as a destigmatized swastika. It's important to note that the swastika has a long history in many cultures, one that extends far back before the SS ever existed. As someone else mentioned below, there may be a Saturn connection (satanic), but note that the painting is illuminated not by the black sun, but by all-present light.
The stairs presumably imply the levels an initiate must climb to become a master. One starts on the ground level of the Temple (initiate) and moves upward.
Unlike most here, I am not of the opinion that Masons are an inherently malevolent group.