What is the correct posture during Mass?

what are the correct postures throughout Mass, especially during consecration?

General Instruction of the Roman Missal:

  1. The faithful should stand from the beginning of the Entrance chant, or while the priest approaches the altar, until the end of the collect; for the Alleluia chant before the Gospel; while the Gospel itself is proclaimed; during the Profession of Faith and the Prayer of the Faithful; from the invitation, Orate, fratres (Pray, brethren), before the prayer over the offerings until the end of Mass, except at the places indicated below.

They should, however, sit while the readings before the Gospel and the responsorial Psalm are proclaimed and for the homily and while the Preparation of the Gifts at the Offertory is taking place; and, as circumstances allow, they may sit or kneel while the period of sacred silence after Communion is observed.

In the dioceses of the United States of America, they should kneel beginning after the singing or recitation of the Sanctus until after the Amen of the Eucharistic Prayer, except when prevented on occasion by reasons of health, lack of space, the large number of people present, or some other good reason. Those who do not kneel ought to make a profound bow when the priest genuflects after the consecration. The faithful kneel after the Agnus Dei unless the diocesan Bishop determines otherwise.

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