二力

Dual powers; there are three definitions:

(1) 自力 one's own strength, or endeavours, i.e. salvation by cultivating 戒, 定, and 慧; 他カ another's strength, e.g. the saving power of Amitābha.

(2) 思擇力 Power of thought in choosing (right principles); 修習力 power of practice and performance.

(3) 有力 and 無力 positive and negative forces: dominant and subordinate; active and inert energy.