17.18 'Respect' means recognition by others. 'Praise' means verbal adulation. 'Reverence' means corporeal actions such as prostration etc. That austerity, practised with expectation of rewards like respect, etc., mentioned above - it is here said to be Rajasa. It is unsteady and impermanent, because of the temporary nature of its rewards like heaven etc.; 'unsteadiness' is the result of the fear of falling. 'Impermanent' means the tendency to perish.