natural sound of dharmata

From the meaning explained in The Wisdom Essence there are three types of teaching: tantras, statements, and instructions. Tantras which manifest as the natural sound of dharmata from the Lord of the Circle and are like a treasury of jewels contained within the chest of the Six limits and four modes; the statements by the lords of the ten bhumis which clarify the meaning of the tantras, fully disclosing their secret significance, and are like a key to this treasury; and finally, the instructions in the key points of the tantras by the vidyadharas that condense these to be applicable for worthy people and are like one's heritage being placed in the palm of one's hand. LW1, pg. 23. (RY)