konchokzopa wrote:and are prostrations done always when meeting an abbot or senior monk ( in this case meditation teacher ) or before starting to meditate in the monastery ?
It depends on the monastery; some places are very formal, some are not. "When you enter a land of squinters, squint with them." (That's the Thai version of "when in Rome...").
Khandhānaṃ rāsaṭṭhaṃ, āyatanānaṃ āyatanaṭṭhaṃ,
Dhātūnaṃ suññaṭṭhaṃ, indriyānaṃ adhipatiyaṭṭhaṃ,
Saccānaṃ tathaṭṭhaṃ aviditaṃ karotītipi ‘avijjā’.
It prevents knowing the meaning of heap in the aggregates, the meaning of actuating in the sense-bases, the meaning of voidness in the elements, the meaning of predominance in the faculties, and the meaning of suchness in the truths, thus it is called ‘ignorance’.
(Visuddhimagga XVII. 43)